Finding the Fourth Proportional to 2,577.77, 3,867.71 and 934.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.77 : 3,867.71 = 934.49 : x
2. Step 2: Convert to fraction form
   2,577.77/3,867.71 = 934.49/x
3. Step 3: Cross multiply
   2,577.77x = 3,867.71 × 934.49
4. Step 4: Simplify right side
   2,577.77x = 3,614,312.31
5. Step 5: Solve for x
   x = 3,614,312.31/2,577.77
6. Step 6: Final answer
   x = 1,402.11