Finding the Fourth Proportional to 2,591.83, 3,888.34 and 948.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.83 : 3,888.34 = 948.38 : x
2. Step 2: Convert to fraction form
   2,591.83/3,888.34 = 948.38/x
3. Step 3: Cross multiply
   2,591.83x = 3,888.34 × 948.38
4. Step 4: Simplify right side
   2,591.83x = 3,687,623.89
5. Step 5: Solve for x
   x = 3,687,623.89/2,591.83
6. Step 6: Final answer
   x = 1,422.79