Finding the Fourth Proportional to 1,096.61, 1,513.28 and 803.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.61 : 1,513.28 = 803.12 : x
2. Step 2: Convert to fraction form
   1,096.61/1,513.28 = 803.12/x
3. Step 3: Cross multiply
   1,096.61x = 1,513.28 × 803.12
4. Step 4: Simplify right side
   1,096.61x = 1,215,339.87
5. Step 5: Solve for x
   x = 1,215,339.87/1,096.61
6. Step 6: Final answer
   x = 1,108.27