Finding the Fourth Proportional to 1,870.42, 2,805.30 and 844.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.42 : 2,805.30 = 844.18 : x
2. Step 2: Convert to fraction form
   1,870.42/2,805.30 = 844.18/x
3. Step 3: Cross multiply
   1,870.42x = 2,805.30 × 844.18
4. Step 4: Simplify right side
   1,870.42x = 2,368,178.15
5. Step 5: Solve for x
   x = 2,368,178.15/1,870.42
6. Step 6: Final answer
   x = 1,266.12