Finding the Fourth Proportional to 706,301.82, 1,060,118.55 and 257,456.52

Step by Step Solution

1. Step 1: Write the proportion equation
   706,301.82 : 1,060,118.55 = 257,456.52 : x
2. Step 2: Convert to fraction form
   706,301.82/1,060,118.55 = 257,456.52/x
3. Step 3: Cross multiply
   706,301.82x = 1,060,118.55 × 257,456.52
4. Step 4: Simplify right side
   706,301.82x = 272,934,432,670.45
5. Step 5: Solve for x
   x = 272,934,432,670.45/706,301.82
6. Step 6: Final answer
   x = 386,427.48