Finding the Fourth Proportional to 1,061.50, 1,465.68 and 841.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.50 : 1,465.68 = 841.60 : x
2. Step 2: Convert to fraction form
   1,061.50/1,465.68 = 841.60/x
3. Step 3: Cross multiply
   1,061.50x = 1,465.68 × 841.60
4. Step 4: Simplify right side
   1,061.50x = 1,233,516.29
5. Step 5: Solve for x
   x = 1,233,516.29/1,061.50
6. Step 6: Final answer
   x = 1,162.05