Finding the Fourth Proportional to 2,684.13, 4,026.71 and 1,298.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.13 : 4,026.71 = 1,298.42 : x
2. Step 2: Convert to fraction form
   2,684.13/4,026.71 = 1,298.42/x
3. Step 3: Cross multiply
   2,684.13x = 4,026.71 × 1,298.42
4. Step 4: Simplify right side
   2,684.13x = 5,228,360.80
5. Step 5: Solve for x
   x = 5,228,360.80/2,684.13
6. Step 6: Final answer
   x = 1,947.88