Finding the Fourth Proportional to 1,061.16, 1,598.46 and 980.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.16 : 1,598.46 = 980.96 : x
2. Step 2: Convert to fraction form
   1,061.16/1,598.46 = 980.96/x
3. Step 3: Cross multiply
   1,061.16x = 1,598.46 × 980.96
4. Step 4: Simplify right side
   1,061.16x = 1,568,025.32
5. Step 5: Solve for x
   x = 1,568,025.32/1,061.16
6. Step 6: Final answer
   x = 1,477.65