Finding the Fourth Proportional to 1,652.56, 2,280.59 and 906.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,652.56 : 2,280.59 = 906.55 : x
2. Step 2: Convert to fraction form
   1,652.56/2,280.59 = 906.55/x
3. Step 3: Cross multiply
   1,652.56x = 2,280.59 × 906.55
4. Step 4: Simplify right side
   1,652.56x = 2,067,468.86
5. Step 5: Solve for x
   x = 2,067,468.86/1,652.56
6. Step 6: Final answer
   x = 1,251.07