Finding the Fourth Proportional to 2,912.83, 4,366.20 and 1,157.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912.83 : 4,366.20 = 1,157.37 : x
2. Step 2: Convert to fraction form
   2,912.83/4,366.20 = 1,157.37/x
3. Step 3: Cross multiply
   2,912.83x = 4,366.20 × 1,157.37
4. Step 4: Simplify right side
   2,912.83x = 5,053,308.89
5. Step 5: Solve for x
   x = 5,053,308.89/2,912.83
6. Step 6: Final answer
   x = 1,734.85