Finding the Fourth Proportional to 2,591.01, 3,887.65 and 1,358.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.01 : 3,887.65 = 1,358.12 : x
2. Step 2: Convert to fraction form
   2,591.01/3,887.65 = 1,358.12/x
3. Step 3: Cross multiply
   2,591.01x = 3,887.65 × 1,358.12
4. Step 4: Simplify right side
   2,591.01x = 5,279,898.61
5. Step 5: Solve for x
   x = 5,279,898.61/2,591.01
6. Step 6: Final answer
   x = 2,037.78