Finding the Fourth Proportional to 2,073.86, 2,862.04 and 1,189.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.86 : 2,862.04 = 1,189.80 : x
2. Step 2: Convert to fraction form
   2,073.86/2,862.04 = 1,189.80/x
3. Step 3: Cross multiply
   2,073.86x = 2,862.04 × 1,189.80
4. Step 4: Simplify right side
   2,073.86x = 3,405,255.19
5. Step 5: Solve for x
   x = 3,405,255.19/2,073.86
6. Step 6: Final answer
   x = 1,641.99