Finding the Fourth Proportional to 2,387.16, 3,294.06 and 1,339

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.16 : 3,294.06 = 1,339 : x
2. Step 2: Convert to fraction form
   2,387.16/3,294.06 = 1,339/x
3. Step 3: Cross multiply
   2,387.16x = 3,294.06 × 1,339
4. Step 4: Simplify right side
   2,387.16x = 4,410,746.34
5. Step 5: Solve for x
   x = 4,410,746.34/2,387.16
6. Step 6: Final answer
   x = 1,847.70