Finding the Fourth Proportional to 1,145,005.08, 1,580,156.37 and 635,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,005.08 : 1,580,156.37 = 635,707.50 : x
2. Step 2: Convert to fraction form
   1,145,005.08/1,580,156.37 = 635,707.50/x
3. Step 3: Cross multiply
   1,145,005.08x = 1,580,156.37 × 635,707.50
4. Step 4: Simplify right side
   1,145,005.08x = 1,004,517,255,581.78
5. Step 5: Solve for x
   x = 1,004,517,255,581.78/1,145,005.08
6. Step 6: Final answer
   x = 877,303.75