Finding the Fourth Proportional to 754,308.18, 1,131,530.67 and 248,870.61

Step by Step Solution

1. Step 1: Write the proportion equation
   754,308.18 : 1,131,530.67 = 248,870.61 : x
2. Step 2: Convert to fraction form
   754,308.18/1,131,530.67 = 248,870.61/x
3. Step 3: Cross multiply
   754,308.18x = 1,131,530.67 × 248,870.61
4. Step 4: Simplify right side
   754,308.18x = 281,604,728,076.61
5. Step 5: Solve for x
   x = 281,604,728,076.61/754,308.18
6. Step 6: Final answer
   x = 373,328.48