Finding the Fourth Proportional to 2,516.85, 3,774.06 and 1,055.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.85 : 3,774.06 = 1,055.61 : x
2. Step 2: Convert to fraction form
   2,516.85/3,774.06 = 1,055.61/x
3. Step 3: Cross multiply
   2,516.85x = 3,774.06 × 1,055.61
4. Step 4: Simplify right side
   2,516.85x = 3,983,935.48
5. Step 5: Solve for x
   x = 3,983,935.48/2,516.85
6. Step 6: Final answer
   x = 1,582.91