Finding the Fourth Proportional to 2,292.71, 3,162.63 and 1,407.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,292.71 : 3,162.63 = 1,407.89 : x
2. Step 2: Convert to fraction form
   2,292.71/3,162.63 = 1,407.89/x
3. Step 3: Cross multiply
   2,292.71x = 3,162.63 × 1,407.89
4. Step 4: Simplify right side
   2,292.71x = 4,452,619.34
5. Step 5: Solve for x
   x = 4,452,619.34/2,292.71
6. Step 6: Final answer
   x = 1,942.08