Finding the Fourth Proportional to 1,566.64, 2,161.89 and 903.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.64 : 2,161.89 = 903.52 : x
2. Step 2: Convert to fraction form
   1,566.64/2,161.89 = 903.52/x
3. Step 3: Cross multiply
   1,566.64x = 2,161.89 × 903.52
4. Step 4: Simplify right side
   1,566.64x = 1,953,310.85
5. Step 5: Solve for x
   x = 1,953,310.85/1,566.64
6. Step 6: Final answer
   x = 1,246.82