Finding the Fourth Proportional to 1,061.64, 1,585.14 and 996.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.64 : 1,585.14 = 996.06 : x
2. Step 2: Convert to fraction form
   1,061.64/1,585.14 = 996.06/x
3. Step 3: Cross multiply
   1,061.64x = 1,585.14 × 996.06
4. Step 4: Simplify right side
   1,061.64x = 1,578,894.55
5. Step 5: Solve for x
   x = 1,578,894.55/1,061.64
6. Step 6: Final answer
   x = 1,487.22