Finding the Fourth Proportional to 1,569.51, 2,165.69 and 906.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,569.51 : 2,165.69 = 906.24 : x
2. Step 2: Convert to fraction form
   1,569.51/2,165.69 = 906.24/x
3. Step 3: Cross multiply
   1,569.51x = 2,165.69 × 906.24
4. Step 4: Simplify right side
   1,569.51x = 1,962,630.37
5. Step 5: Solve for x
   x = 1,962,630.37/1,569.51
6. Step 6: Final answer
   x = 1,250.47