Finding the Fourth Proportional to 1,157.09, 1,598.89 and 876.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157.09 : 1,598.89 = 876.83 : x
2. Step 2: Convert to fraction form
   1,157.09/1,598.89 = 876.83/x
3. Step 3: Cross multiply
   1,157.09x = 1,598.89 × 876.83
4. Step 4: Simplify right side
   1,157.09x = 1,401,946.18
5. Step 5: Solve for x
   x = 1,401,946.18/1,157.09
6. Step 6: Final answer
   x = 1,211.62