Finding the Fourth Proportional to 2,849.34, 4,272.26 and 1,387.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,849.34 : 4,272.26 = 1,387.02 : x
2. Step 2: Convert to fraction form
   2,849.34/4,272.26 = 1,387.02/x
3. Step 3: Cross multiply
   2,849.34x = 4,272.26 × 1,387.02
4. Step 4: Simplify right side
   2,849.34x = 5,925,710.07
5. Step 5: Solve for x
   x = 5,925,710.07/2,849.34
6. Step 6: Final answer
   x = 2,079.68