Finding the Fourth Proportional to 2,346.79, 3,238.42 and 1,298.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,346.79 : 3,238.42 = 1,298.87 : x
2. Step 2: Convert to fraction form
   2,346.79/3,238.42 = 1,298.87/x
3. Step 3: Cross multiply
   2,346.79x = 3,238.42 × 1,298.87
4. Step 4: Simplify right side
   2,346.79x = 4,206,280.09
5. Step 5: Solve for x
   x = 4,206,280.09/2,346.79
6. Step 6: Final answer
   x = 1,792.36