Finding the Fourth Proportional to 1,436.52, 2,155.30 and 706.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.52 : 2,155.30 = 706.61 : x
2. Step 2: Convert to fraction form
   1,436.52/2,155.30 = 706.61/x
3. Step 3: Cross multiply
   1,436.52x = 2,155.30 × 706.61
4. Step 4: Simplify right side
   1,436.52x = 1,522,956.53
5. Step 5: Solve for x
   x = 1,522,956.53/1,436.52
6. Step 6: Final answer
   x = 1,060.17