Finding the Fourth Proportional to 3,500.64, 5,248.56 and 1,308.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.64 : 5,248.56 = 1,308.96 : x
2. Step 2: Convert to fraction form
   3,500.64/5,248.56 = 1,308.96/x
3. Step 3: Cross multiply
   3,500.64x = 5,248.56 × 1,308.96
4. Step 4: Simplify right side
   3,500.64x = 6,870,155.10
5. Step 5: Solve for x
   x = 6,870,155.10/3,500.64
6. Step 6: Final answer
   x = 1,962.54