Finding the Fourth Proportional to 2,173.41, 3,260.52 and 1,398.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.41 : 3,260.52 = 1,398.47 : x
2. Step 2: Convert to fraction form
   2,173.41/3,260.52 = 1,398.47/x
3. Step 3: Cross multiply
   2,173.41x = 3,260.52 × 1,398.47
4. Step 4: Simplify right side
   2,173.41x = 4,559,723.10
5. Step 5: Solve for x
   x = 4,559,723.10/2,173.41
6. Step 6: Final answer
   x = 2,097.96