Finding the Fourth Proportional to 2,577.56, 3,868.39 and 934.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.56 : 3,868.39 = 934.58 : x
2. Step 2: Convert to fraction form
   2,577.56/3,868.39 = 934.58/x
3. Step 3: Cross multiply
   2,577.56x = 3,868.39 × 934.58
4. Step 4: Simplify right side
   2,577.56x = 3,615,300.58
5. Step 5: Solve for x
   x = 3,615,300.58/2,577.56
6. Step 6: Final answer
   x = 1,402.61