Finding the Fourth Proportional to 2,077.68, 3,116.55 and 1,153.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.68 : 3,116.55 = 1,153.02 : x
2. Step 2: Convert to fraction form
   2,077.68/3,116.55 = 1,153.02/x
3. Step 3: Cross multiply
   2,077.68x = 3,116.55 × 1,153.02
4. Step 4: Simplify right side
   2,077.68x = 3,593,444.48
5. Step 5: Solve for x
   x = 3,593,444.48/2,077.68
6. Step 6: Final answer
   x = 1,729.55