Finding the Fourth Proportional to 3,248.50, 4,871.32 and 1,026.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,248.50 : 4,871.32 = 1,026.78 : x
2. Step 2: Convert to fraction form
   3,248.50/4,871.32 = 1,026.78/x
3. Step 3: Cross multiply
   3,248.50x = 4,871.32 × 1,026.78
4. Step 4: Simplify right side
   3,248.50x = 5,001,773.95
5. Step 5: Solve for x
   x = 5,001,773.95/3,248.50
6. Step 6: Final answer
   x = 1,539.72