Finding the Fourth Proportional to 2,507.95, 3,762.78 and 948.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.95 : 3,762.78 = 948.40 : x
2. Step 2: Convert to fraction form
   2,507.95/3,762.78 = 948.40/x
3. Step 3: Cross multiply
   2,507.95x = 3,762.78 × 948.40
4. Step 4: Simplify right side
   2,507.95x = 3,568,611.15
5. Step 5: Solve for x
   x = 3,568,611.15/2,507.95
6. Step 6: Final answer
   x = 1,422.92