Finding the Fourth Proportional to 1,175,502.88, 1,622,192.52 and 685,492.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175,502.88 : 1,622,192.52 = 685,492.15 : x
2. Step 2: Convert to fraction form
   1,175,502.88/1,622,192.52 = 685,492.15/x
3. Step 3: Cross multiply
   1,175,502.88x = 1,622,192.52 × 685,492.15
4. Step 4: Simplify right side
   1,175,502.88x = 1,112,000,238,248.72
5. Step 5: Solve for x
   x = 1,112,000,238,248.72/1,175,502.88
6. Step 6: Final answer
   x = 945,978.32