Finding the Fourth Proportional to 2,487.57, 3,432.86 and 1,368.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.57 : 3,432.86 = 1,368.59 : x
2. Step 2: Convert to fraction form
   2,487.57/3,432.86 = 1,368.59/x
3. Step 3: Cross multiply
   2,487.57x = 3,432.86 × 1,368.59
4. Step 4: Simplify right side
   2,487.57x = 4,698,153.86
5. Step 5: Solve for x
   x = 4,698,153.86/2,487.57
6. Step 6: Final answer
   x = 1,888.65