Finding the Fourth Proportional to 1,386.26, 2,064.59 and 1,337.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.26 : 2,064.59 = 1,337.82 : x
2. Step 2: Convert to fraction form
   1,386.26/2,064.59 = 1,337.82/x
3. Step 3: Cross multiply
   1,386.26x = 2,064.59 × 1,337.82
4. Step 4: Simplify right side
   1,386.26x = 2,762,040.38
5. Step 5: Solve for x
   x = 2,762,040.38/1,386.26
6. Step 6: Final answer
   x = 1,992.43