Finding the Fourth Proportional to 1,157.99, 1,731.83 and 1,028.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157.99 : 1,731.83 = 1,028.83 : x
2. Step 2: Convert to fraction form
   1,157.99/1,731.83 = 1,028.83/x
3. Step 3: Cross multiply
   1,157.99x = 1,731.83 × 1,028.83
4. Step 4: Simplify right side
   1,157.99x = 1,781,744.86
5. Step 5: Solve for x
   x = 1,781,744.86/1,157.99
6. Step 6: Final answer
   x = 1,538.66