Finding the Fourth Proportional to 2,077.55, 3,118.15 and 1,154.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.55 : 3,118.15 = 1,154.15 : x
2. Step 2: Convert to fraction form
   2,077.55/3,118.15 = 1,154.15/x
3. Step 3: Cross multiply
   2,077.55x = 3,118.15 × 1,154.15
4. Step 4: Simplify right side
   2,077.55x = 3,598,812.82
5. Step 5: Solve for x
   x = 3,598,812.82/2,077.55
6. Step 6: Final answer
   x = 1,732.24