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Finding the Fourth Proportional to 1,987,830.80, 2,978,232.60 and 1,922,051.60

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Solution

The fourth proportional to 1,987,830.80, 2,978,232.60 and 1,922,051.60 is: 2,879,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,830.80 : 2,978,232.60 = 1,922,051.60 : x
  2. Step 2: Convert to fraction form
    1,987,830.80/2,978,232.60 = 1,922,051.60/x
  3. Step 3: Cross multiply
    1,987,830.80x = 2,978,232.60 × 1,922,051.60
  4. Step 4: Simplify right side
    1,987,830.80x = 5,724,316,734,002.16
  5. Step 5: Solve for x
    x = 5,724,316,734,002.16/1,987,830.80
  6. Step 6: Final answer
    x = 2,879,680.07

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