Finding the Fourth Proportional to 2,386.06, 3,292.76 and 1,338.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.06 : 3,292.76 = 1,338.12 : x
2. Step 2: Convert to fraction form
   2,386.06/3,292.76 = 1,338.12/x
3. Step 3: Cross multiply
   2,386.06x = 3,292.76 × 1,338.12
4. Step 4: Simplify right side
   2,386.06x = 4,406,108.01
5. Step 5: Solve for x
   x = 4,406,108.01/2,386.06
6. Step 6: Final answer
   x = 1,846.60