Finding the Fourth Proportional to 1,185,114.59, 1,635,453.61 and 641,251.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,114.59 : 1,635,453.61 = 641,251.43 : x
2. Step 2: Convert to fraction form
   1,185,114.59/1,635,453.61 = 641,251.43/x
3. Step 3: Cross multiply
   1,185,114.59x = 1,635,453.61 × 641,251.43
4. Step 4: Simplify right side
   1,185,114.59x = 1,048,736,956,330.77
5. Step 5: Solve for x
   x = 1,048,736,956,330.77/1,185,114.59
6. Step 6: Final answer
   x = 884,924.52