Finding the Fourth Proportional to 2,591.76, 3,887.91 and 948.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.76 : 3,887.91 = 948.54 : x
2. Step 2: Convert to fraction form
   2,591.76/3,887.91 = 948.54/x
3. Step 3: Cross multiply
   2,591.76x = 3,887.91 × 948.54
4. Step 4: Simplify right side
   2,591.76x = 3,687,838.15
5. Step 5: Solve for x
   x = 3,687,838.15/2,591.76
6. Step 6: Final answer
   x = 1,422.91