Finding the Fourth Proportional to 1,116,870.23, 1,541,816.34 and 687,518.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,870.23 : 1,541,816.34 = 687,518.39 : x
2. Step 2: Convert to fraction form
   1,116,870.23/1,541,816.34 = 687,518.39/x
3. Step 3: Cross multiply
   1,116,870.23x = 1,541,816.34 × 687,518.39
4. Step 4: Simplify right side
   1,116,870.23x = 1,060,027,087,752.49
5. Step 5: Solve for x
   x = 1,060,027,087,752.49/1,116,870.23
6. Step 6: Final answer
   x = 949,104.97