Finding the Fourth Proportional to 1,156.59, 1,736.78 and 975.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.59 : 1,736.78 = 975.15 : x
2. Step 2: Convert to fraction form
   1,156.59/1,736.78 = 975.15/x
3. Step 3: Cross multiply
   1,156.59x = 1,736.78 × 975.15
4. Step 4: Simplify right side
   1,156.59x = 1,693,616.14
5. Step 5: Solve for x
   x = 1,693,616.14/1,156.59
6. Step 6: Final answer
   x = 1,464.32