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Finding the Fourth Proportional to 1,843.21, 2,763.43 and 1,112.61

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Solution

The fourth proportional to 1,843.21, 2,763.43 and 1,112.61 is: 1,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.21 : 2,763.43 = 1,112.61 : x
  2. Step 2: Convert to fraction form
    1,843.21/2,763.43 = 1,112.61/x
  3. Step 3: Cross multiply
    1,843.21x = 2,763.43 × 1,112.61
  4. Step 4: Simplify right side
    1,843.21x = 3,074,619.85
  5. Step 5: Solve for x
    x = 3,074,619.85/1,843.21
  6. Step 6: Final answer
    x = 1,668.08

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