Finding the Fourth Proportional to 2,346.71, 3,238.43 and 1,298.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,346.71 : 3,238.43 = 1,298.79 : x
2. Step 2: Convert to fraction form
   2,346.71/3,238.43 = 1,298.79/x
3. Step 3: Cross multiply
   2,346.71x = 3,238.43 × 1,298.79
4. Step 4: Simplify right side
   2,346.71x = 4,206,034.01
5. Step 5: Solve for x
   x = 4,206,034.01/2,346.71
6. Step 6: Final answer
   x = 1,792.31