Finding the Fourth Proportional to 2,073.16, 2,861.16 and 1,189.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.16 : 2,861.16 = 1,189.12 : x
2. Step 2: Convert to fraction form
   2,073.16/2,861.16 = 1,189.12/x
3. Step 3: Cross multiply
   2,073.16x = 2,861.16 × 1,189.12
4. Step 4: Simplify right side
   2,073.16x = 3,402,262.58
5. Step 5: Solve for x
   x = 3,402,262.58/2,073.16
6. Step 6: Final answer
   x = 1,641.10