Finding the Fourth Proportional to 2,577.79, 3,867.38 and 934.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.79 : 3,867.38 = 934.59 : x
2. Step 2: Convert to fraction form
   2,577.79/3,867.38 = 934.59/x
3. Step 3: Cross multiply
   2,577.79x = 3,867.38 × 934.59
4. Step 4: Simplify right side
   2,577.79x = 3,614,406.25
5. Step 5: Solve for x
   x = 3,614,406.25/2,577.79
6. Step 6: Final answer
   x = 1,402.13