Finding the Fourth Proportional to 1,145.34, 1,715.58 and 656.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.34 : 1,715.58 = 656.10 : x
2. Step 2: Convert to fraction form
   1,145.34/1,715.58 = 656.10/x
3. Step 3: Cross multiply
   1,145.34x = 1,715.58 × 656.10
4. Step 4: Simplify right side
   1,145.34x = 1,125,592.04
5. Step 5: Solve for x
   x = 1,125,592.04/1,145.34
6. Step 6: Final answer
   x = 982.76