Finding the Fourth Proportional to 1,185,322.50, 1,635,744.96 and 641,458.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,322.50 : 1,635,744.96 = 641,458.29 : x
2. Step 2: Convert to fraction form
   1,185,322.50/1,635,744.96 = 641,458.29/x
3. Step 3: Cross multiply
   1,185,322.50x = 1,635,744.96 × 641,458.29
4. Step 4: Simplify right side
   1,185,322.50x = 1,049,262,164,917.72
5. Step 5: Solve for x
   x = 1,049,262,164,917.72/1,185,322.50
6. Step 6: Final answer
   x = 885,212.39