Finding the Fourth Proportional to 2,720.83, 4,077.43 and 1,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.83 : 4,077.43 = 1,158.72 : x
2. Step 2: Convert to fraction form
   2,720.83/4,077.43 = 1,158.72/x
3. Step 3: Cross multiply
   2,720.83x = 4,077.43 × 1,158.72
4. Step 4: Simplify right side
   2,720.83x = 4,724,599.69
5. Step 5: Solve for x
   x = 4,724,599.69/2,720.83
6. Step 6: Final answer
   x = 1,736.46