Finding the Fourth Proportional to 2,385.48, 3,288.92 and 1,544.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.48 : 3,288.92 = 1,544.70 : x
2. Step 2: Convert to fraction form
   2,385.48/3,288.92 = 1,544.70/x
3. Step 3: Cross multiply
   2,385.48x = 3,288.92 × 1,544.70
4. Step 4: Simplify right side
   2,385.48x = 5,080,394.72
5. Step 5: Solve for x
   x = 5,080,394.72/2,385.48
6. Step 6: Final answer
   x = 2,129.72