Finding the Fourth Proportional to 2,077.36, 3,116.06 and 1,154.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.36 : 3,116.06 = 1,154.72 : x
2. Step 2: Convert to fraction form
   2,077.36/3,116.06 = 1,154.72/x
3. Step 3: Cross multiply
   2,077.36x = 3,116.06 × 1,154.72
4. Step 4: Simplify right side
   2,077.36x = 3,598,176.80
5. Step 5: Solve for x
   x = 3,598,176.80/2,077.36
6. Step 6: Final answer
   x = 1,732.09