Finding the Fourth Proportional to 1,061.25, 1,584.41 and 907.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.25 : 1,584.41 = 907.23 : x
2. Step 2: Convert to fraction form
   1,061.25/1,584.41 = 907.23/x
3. Step 3: Cross multiply
   1,061.25x = 1,584.41 × 907.23
4. Step 4: Simplify right side
   1,061.25x = 1,437,426.55
5. Step 5: Solve for x
   x = 1,437,426.55/1,061.25
6. Step 6: Final answer
   x = 1,354.47