Finding the Fourth Proportional to 2,073.79, 2,861.88 and 1,189.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.79 : 2,861.88 = 1,189.87 : x
2. Step 2: Convert to fraction form
   2,073.79/2,861.88 = 1,189.87/x
3. Step 3: Cross multiply
   2,073.79x = 2,861.88 × 1,189.87
4. Step 4: Simplify right side
   2,073.79x = 3,405,265.16
5. Step 5: Solve for x
   x = 3,405,265.16/2,073.79
6. Step 6: Final answer
   x = 1,642.05