Finding the Fourth Proportional to 1,740.27, 2,612.83 and 1,157.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.27 : 2,612.83 = 1,157.07 : x
2. Step 2: Convert to fraction form
   1,740.27/2,612.83 = 1,157.07/x
3. Step 3: Cross multiply
   1,740.27x = 2,612.83 × 1,157.07
4. Step 4: Simplify right side
   1,740.27x = 3,023,211.25
5. Step 5: Solve for x
   x = 3,023,211.25/1,740.27
6. Step 6: Final answer
   x = 1,737.21