Finding the Fourth Proportional to 1,483.57, 2,226.80 and 714.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.57 : 2,226.80 = 714.61 : x
2. Step 2: Convert to fraction form
   1,483.57/2,226.80 = 714.61/x
3. Step 3: Cross multiply
   1,483.57x = 2,226.80 × 714.61
4. Step 4: Simplify right side
   1,483.57x = 1,591,293.55
5. Step 5: Solve for x
   x = 1,591,293.55/1,483.57
6. Step 6: Final answer
   x = 1,072.61