Finding the Fourth Proportional to 2,696.41, 4,043.38 and 1,398.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,696.41 : 4,043.38 = 1,398.79 : x
2. Step 2: Convert to fraction form
   2,696.41/4,043.38 = 1,398.79/x
3. Step 3: Cross multiply
   2,696.41x = 4,043.38 × 1,398.79
4. Step 4: Simplify right side
   2,696.41x = 5,655,832.52
5. Step 5: Solve for x
   x = 5,655,832.52/2,696.41
6. Step 6: Final answer
   x = 2,097.54