Finding the Fourth Proportional to 706,002.98, 1,059,454.82 and 256,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   706,002.98 : 1,059,454.82 = 256,680.72 : x
2. Step 2: Convert to fraction form
   706,002.98/1,059,454.82 = 256,680.72/x
3. Step 3: Cross multiply
   706,002.98x = 1,059,454.82 × 256,680.72
4. Step 4: Simplify right side
   706,002.98x = 271,941,624,721.67
5. Step 5: Solve for x
   x = 271,941,624,721.67/706,002.98
6. Step 6: Final answer
   x = 385,184.81