Finding the Fourth Proportional to 2,651.42, 3,977.98 and 1,092.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.42 : 3,977.98 = 1,092.15 : x
2. Step 2: Convert to fraction form
   2,651.42/3,977.98 = 1,092.15/x
3. Step 3: Cross multiply
   2,651.42x = 3,977.98 × 1,092.15
4. Step 4: Simplify right side
   2,651.42x = 4,344,550.86
5. Step 5: Solve for x
   x = 4,344,550.86/2,651.42
6. Step 6: Final answer
   x = 1,638.58