Finding the Fourth Proportional to 2,425.96, 3,345.24 and 1,587.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.96 : 3,345.24 = 1,587.39 : x
2. Step 2: Convert to fraction form
   2,425.96/3,345.24 = 1,587.39/x
3. Step 3: Cross multiply
   2,425.96x = 3,345.24 × 1,587.39
4. Step 4: Simplify right side
   2,425.96x = 5,310,200.52
5. Step 5: Solve for x
   x = 5,310,200.52/2,425.96
6. Step 6: Final answer
   x = 2,188.91