Finding the Fourth Proportional to 2,390.84, 3,298.35 and 1,726.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.84 : 3,298.35 = 1,726.23 : x
2. Step 2: Convert to fraction form
   2,390.84/3,298.35 = 1,726.23/x
3. Step 3: Cross multiply
   2,390.84x = 3,298.35 × 1,726.23
4. Step 4: Simplify right side
   2,390.84x = 5,693,710.72
5. Step 5: Solve for x
   x = 5,693,710.72/2,390.84
6. Step 6: Final answer
   x = 2,381.47