Finding the Fourth Proportional to 1,157.59, 1,738.28 and 976.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157.59 : 1,738.28 = 976.15 : x
2. Step 2: Convert to fraction form
   1,157.59/1,738.28 = 976.15/x
3. Step 3: Cross multiply
   1,157.59x = 1,738.28 × 976.15
4. Step 4: Simplify right side
   1,157.59x = 1,696,822.02
5. Step 5: Solve for x
   x = 1,696,822.02/1,157.59
6. Step 6: Final answer
   x = 1,465.82