Finding the Fourth Proportional to 1,475.31, 2,217.07 and 1,009.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475.31 : 2,217.07 = 1,009.89 : x
2. Step 2: Convert to fraction form
   1,475.31/2,217.07 = 1,009.89/x
3. Step 3: Cross multiply
   1,475.31x = 2,217.07 × 1,009.89
4. Step 4: Simplify right side
   1,475.31x = 2,239,004.32
5. Step 5: Solve for x
   x = 2,239,004.32/1,475.31
6. Step 6: Final answer
   x = 1,517.65