Finding the Fourth Proportional to 1,566.96, 2,162.72 and 903.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.96 : 2,162.72 = 903.92 : x
2. Step 2: Convert to fraction form
   1,566.96/2,162.72 = 903.92/x
3. Step 3: Cross multiply
   1,566.96x = 2,162.72 × 903.92
4. Step 4: Simplify right side
   1,566.96x = 1,954,925.86
5. Step 5: Solve for x
   x = 1,954,925.86/1,566.96
6. Step 6: Final answer
   x = 1,247.59