Finding the Fourth Proportional to 1,102.69, 1,510.70 and 1,061.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,102.69 : 1,510.70 = 1,061.18 : x
2. Step 2: Convert to fraction form
   1,102.69/1,510.70 = 1,061.18/x
3. Step 3: Cross multiply
   1,102.69x = 1,510.70 × 1,061.18
4. Step 4: Simplify right side
   1,102.69x = 1,603,119.73
5. Step 5: Solve for x
   x = 1,603,119.73/1,102.69
6. Step 6: Final answer
   x = 1,453.83