Finding the Fourth Proportional to 1,870.24, 2,805.34 and 843.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.24 : 2,805.34 = 843.04 : x
2. Step 2: Convert to fraction form
   1,870.24/2,805.34 = 843.04/x
3. Step 3: Cross multiply
   1,870.24x = 2,805.34 × 843.04
4. Step 4: Simplify right side
   1,870.24x = 2,365,013.83
5. Step 5: Solve for x
   x = 2,365,013.83/1,870.24
6. Step 6: Final answer
   x = 1,264.55