Finding the Fourth Proportional to 1,672.09, 2,308.32 and 1,083.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.09 : 2,308.32 = 1,083.10 : x
2. Step 2: Convert to fraction form
   1,672.09/2,308.32 = 1,083.10/x
3. Step 3: Cross multiply
   1,672.09x = 2,308.32 × 1,083.10
4. Step 4: Simplify right side
   1,672.09x = 2,500,141.39
5. Step 5: Solve for x
   x = 2,500,141.39/1,672.09
6. Step 6: Final answer
   x = 1,495.22