Finding the Fourth Proportional to 1,185,251.83, 1,635,651.83 and 641,387.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,251.83 : 1,635,651.83 = 641,387.55 : x
2. Step 2: Convert to fraction form
   1,185,251.83/1,635,651.83 = 641,387.55/x
3. Step 3: Cross multiply
   1,185,251.83x = 1,635,651.83 × 641,387.55
4. Step 4: Simplify right side
   1,185,251.83x = 1,049,086,722,382.38
5. Step 5: Solve for x
   x = 1,049,086,722,382.38/1,185,251.83
6. Step 6: Final answer
   x = 885,117.15