Finding the Fourth Proportional to 674,892.80, 931,352.00 and 368,969.10

Step by Step Solution

1. Step 1: Write the proportion equation
   674,892.80 : 931,352.00 = 368,969.10 : x
2. Step 2: Convert to fraction form
   674,892.80/931,352.00 = 368,969.10/x
3. Step 3: Cross multiply
   674,892.80x = 931,352.00 × 368,969.10
4. Step 4: Simplify right side
   674,892.80x = 343,640,109,706.73
5. Step 5: Solve for x
   x = 343,640,109,706.73/674,892.80
6. Step 6: Final answer
   x = 509,177.32