Finding the Fourth Proportional to 2,074.02, 2,862.06 and 1,189.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.02 : 2,862.06 = 1,189.21 : x
2. Step 2: Convert to fraction form
   2,074.02/2,862.06 = 1,189.21/x
3. Step 3: Cross multiply
   2,074.02x = 2,862.06 × 1,189.21
4. Step 4: Simplify right side
   2,074.02x = 3,403,590.37
5. Step 5: Solve for x
   x = 3,403,590.37/2,074.02
6. Step 6: Final answer
   x = 1,641.06