Finding the Fourth Proportional to 2,515.40, 3,773.30 and 956.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.40 : 3,773.30 = 956.15 : x
2. Step 2: Convert to fraction form
   2,515.40/3,773.30 = 956.15/x
3. Step 3: Cross multiply
   2,515.40x = 3,773.30 × 956.15
4. Step 4: Simplify right side
   2,515.40x = 3,607,817.15
5. Step 5: Solve for x
   x = 3,607,817.15/2,515.40
6. Step 6: Final answer
   x = 1,434.29