Finding the Fourth Proportional to 2,881.65, 4,321.86 and 932.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,881.65 : 4,321.86 = 932.79 : x
2. Step 2: Convert to fraction form
   2,881.65/4,321.86 = 932.79/x
3. Step 3: Cross multiply
   2,881.65x = 4,321.86 × 932.79
4. Step 4: Simplify right side
   2,881.65x = 4,031,387.79
5. Step 5: Solve for x
   x = 4,031,387.79/2,881.65
6. Step 6: Final answer
   x = 1,398.99