Finding the Fourth Proportional to 760,233.50, 1,139,440.22 and 354,880.34

Step by Step Solution

1. Step 1: Write the proportion equation
   760,233.50 : 1,139,440.22 = 354,880.34 : x
2. Step 2: Convert to fraction form
   760,233.50/1,139,440.22 = 354,880.34/x
3. Step 3: Cross multiply
   760,233.50x = 1,139,440.22 × 354,880.34
4. Step 4: Simplify right side
   760,233.50x = 404,364,932,683.28
5. Step 5: Solve for x
   x = 404,364,932,683.28/760,233.50
6. Step 6: Final answer
   x = 531,895.70