Finding the Fourth Proportional to 2,386.13, 3,292.82 and 1,338.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.13 : 3,292.82 = 1,338.20 : x
2. Step 2: Convert to fraction form
   2,386.13/3,292.82 = 1,338.20/x
3. Step 3: Cross multiply
   2,386.13x = 3,292.82 × 1,338.20
4. Step 4: Simplify right side
   2,386.13x = 4,406,428.57
5. Step 5: Solve for x
   x = 4,406,428.57/2,386.13
6. Step 6: Final answer
   x = 1,846.68