Finding the Fourth Proportional to 1,566.72, 2,162.06 and 903.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.72 : 2,162.06 = 903.56 : x
2. Step 2: Convert to fraction form
   1,566.72/2,162.06 = 903.56/x
3. Step 3: Cross multiply
   1,566.72x = 2,162.06 × 903.56
4. Step 4: Simplify right side
   1,566.72x = 1,953,550.93
5. Step 5: Solve for x
   x = 1,953,550.93/1,566.72
6. Step 6: Final answer
   x = 1,246.90