Finding the Fourth Proportional to 1,872.22, 2,810.05 and 948.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.22 : 2,810.05 = 948.42 : x
2. Step 2: Convert to fraction form
   1,872.22/2,810.05 = 948.42/x
3. Step 3: Cross multiply
   1,872.22x = 2,810.05 × 948.42
4. Step 4: Simplify right side
   1,872.22x = 2,665,103.54
5. Step 5: Solve for x
   x = 2,665,103.54/1,872.22
6. Step 6: Final answer
   x = 1,423.50