Finding the Fourth Proportional to 2,074.30, 2,862.23 and 1,189.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.30 : 2,862.23 = 1,189.94 : x
2. Step 2: Convert to fraction form
   2,074.30/2,862.23 = 1,189.94/x
3. Step 3: Cross multiply
   2,074.30x = 2,862.23 × 1,189.94
4. Step 4: Simplify right side
   2,074.30x = 3,405,861.71
5. Step 5: Solve for x
   x = 3,405,861.71/2,074.30
6. Step 6: Final answer
   x = 1,641.94