Finding the Fourth Proportional to 1,671.71, 2,308.43 and 1,083.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.71 : 2,308.43 = 1,083.65 : x
2. Step 2: Convert to fraction form
   1,671.71/2,308.43 = 1,083.65/x
3. Step 3: Cross multiply
   1,671.71x = 2,308.43 × 1,083.65
4. Step 4: Simplify right side
   1,671.71x = 2,501,521.34
5. Step 5: Solve for x
   x = 2,501,521.34/1,671.71
6. Step 6: Final answer
   x = 1,496.39