Finding the Fourth Proportional to 2,073.87, 2,861.87 and 1,189.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.87 : 2,861.87 = 1,189.82 : x
2. Step 2: Convert to fraction form
   2,073.87/2,861.87 = 1,189.82/x
3. Step 3: Cross multiply
   2,073.87x = 2,861.87 × 1,189.82
4. Step 4: Simplify right side
   2,073.87x = 3,405,111.37
5. Step 5: Solve for x
   x = 3,405,111.37/2,073.87
6. Step 6: Final answer
   x = 1,641.91