Finding the Fourth Proportional to 2,591.48, 3,888.38 and 1,358.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.48 : 3,888.38 = 1,358.60 : x
2. Step 2: Convert to fraction form
   2,591.48/3,888.38 = 1,358.60/x
3. Step 3: Cross multiply
   2,591.48x = 3,888.38 × 1,358.60
4. Step 4: Simplify right side
   2,591.48x = 5,282,726.83
5. Step 5: Solve for x
   x = 5,282,726.83/2,591.48
6. Step 6: Final answer
   x = 2,038.50