Finding the Fourth Proportional to 1,417.51, 1,951.31 and 1,229.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.51 : 1,951.31 = 1,229.89 : x
2. Step 2: Convert to fraction form
   1,417.51/1,951.31 = 1,229.89/x
3. Step 3: Cross multiply
   1,417.51x = 1,951.31 × 1,229.89
4. Step 4: Simplify right side
   1,417.51x = 2,399,890.51
5. Step 5: Solve for x
   x = 2,399,890.51/1,417.51
6. Step 6: Final answer
   x = 1,693.04