Finding the Fourth Proportional to 2,889.98, 4,339.86 and 2,742.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,889.98 : 4,339.86 = 2,742.02 : x
2. Step 2: Convert to fraction form
   2,889.98/4,339.86 = 2,742.02/x
3. Step 3: Cross multiply
   2,889.98x = 4,339.86 × 2,742.02
4. Step 4: Simplify right side
   2,889.98x = 11,899,982.92
5. Step 5: Solve for x
   x = 11,899,982.92/2,889.98
6. Step 6: Final answer
   x = 4,117.67