Finding the Fourth Proportional to 2,591.56, 3,888.39 and 948.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.56 : 3,888.39 = 948.25 : x
2. Step 2: Convert to fraction form
   2,591.56/3,888.39 = 948.25/x
3. Step 3: Cross multiply
   2,591.56x = 3,888.39 × 948.25
4. Step 4: Simplify right side
   2,591.56x = 3,687,165.82
5. Step 5: Solve for x
   x = 3,687,165.82/2,591.56
6. Step 6: Final answer
   x = 1,422.76