Finding the Fourth Proportional to 3,877.77, 5,816.55 and 956.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,877.77 : 5,816.55 = 956.10 : x
2. Step 2: Convert to fraction form
   3,877.77/5,816.55 = 956.10/x
3. Step 3: Cross multiply
   3,877.77x = 5,816.55 × 956.10
4. Step 4: Simplify right side
   3,877.77x = 5,561,203.46
5. Step 5: Solve for x
   x = 5,561,203.46/3,877.77
6. Step 6: Final answer
   x = 1,434.12