Finding the Fourth Proportional to 2,490.96, 3,433.86 and 1,742.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.96 : 3,433.86 = 1,742.58 : x
2. Step 2: Convert to fraction form
   2,490.96/3,433.86 = 1,742.58/x
3. Step 3: Cross multiply
   2,490.96x = 3,433.86 × 1,742.58
4. Step 4: Simplify right side
   2,490.96x = 5,983,775.76
5. Step 5: Solve for x
   x = 5,983,775.76/2,490.96
6. Step 6: Final answer
   x = 2,402.20