Finding the Fourth Proportional to 1,061.04, 1,581.18 and 1,026.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.04 : 1,581.18 = 1,026.21 : x
2. Step 2: Convert to fraction form
   1,061.04/1,581.18 = 1,026.21/x
3. Step 3: Cross multiply
   1,061.04x = 1,581.18 × 1,026.21
4. Step 4: Simplify right side
   1,061.04x = 1,622,622.73
5. Step 5: Solve for x
   x = 1,622,622.73/1,061.04
6. Step 6: Final answer
   x = 1,529.28