Finding the Fourth Proportional to 2,402.81, 3,315.88 and 1,298.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.81 : 3,315.88 = 1,298.81 : x
2. Step 2: Convert to fraction form
   2,402.81/3,315.88 = 1,298.81/x
3. Step 3: Cross multiply
   2,402.81x = 3,315.88 × 1,298.81
4. Step 4: Simplify right side
   2,402.81x = 4,306,698.10
5. Step 5: Solve for x
   x = 4,306,698.10/2,402.81
6. Step 6: Final answer
   x = 1,792.36