Finding the Fourth Proportional to 2,294.67, 3,166.17 and 1,398.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,294.67 : 3,166.17 = 1,398.15 : x
2. Step 2: Convert to fraction form
   2,294.67/3,166.17 = 1,398.15/x
3. Step 3: Cross multiply
   2,294.67x = 3,166.17 × 1,398.15
4. Step 4: Simplify right side
   2,294.67x = 4,426,780.59
5. Step 5: Solve for x
   x = 4,426,780.59/2,294.67
6. Step 6: Final answer
   x = 1,929.16