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Finding the Fourth Proportional to 1,079.47, 1,621.37 and 1,044.01

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Solution

The fourth proportional to 1,079.47, 1,621.37 and 1,044.01 is: 1,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.47 : 1,621.37 = 1,044.01 : x
  2. Step 2: Convert to fraction form
    1,079.47/1,621.37 = 1,044.01/x
  3. Step 3: Cross multiply
    1,079.47x = 1,621.37 × 1,044.01
  4. Step 4: Simplify right side
    1,079.47x = 1,692,716.14
  5. Step 5: Solve for x
    x = 1,692,716.14/1,079.47
  6. Step 6: Final answer
    x = 1,568.10

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