Finding the Fourth Proportional to 2,073.31, 2,861.25 and 1,189.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.31 : 2,861.25 = 1,189.19 : x
2. Step 2: Convert to fraction form
   2,073.31/2,861.25 = 1,189.19/x
3. Step 3: Cross multiply
   2,073.31x = 2,861.25 × 1,189.19
4. Step 4: Simplify right side
   2,073.31x = 3,402,569.89
5. Step 5: Solve for x
   x = 3,402,569.89/2,073.31
6. Step 6: Final answer
   x = 1,641.13