Finding the Fourth Proportional to 1,432.56, 1,976.22 and 907.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.56 : 1,976.22 = 907.68 : x
2. Step 2: Convert to fraction form
   1,432.56/1,976.22 = 907.68/x
3. Step 3: Cross multiply
   1,432.56x = 1,976.22 × 907.68
4. Step 4: Simplify right side
   1,432.56x = 1,793,775.37
5. Step 5: Solve for x
   x = 1,793,775.37/1,432.56
6. Step 6: Final answer
   x = 1,252.15