Finding the Fourth Proportional to 1,674.72, 2,312.22 and 1,046.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.72 : 2,312.22 = 1,046.20 : x
2. Step 2: Convert to fraction form
   1,674.72/2,312.22 = 1,046.20/x
3. Step 3: Cross multiply
   1,674.72x = 2,312.22 × 1,046.20
4. Step 4: Simplify right side
   1,674.72x = 2,419,044.56
5. Step 5: Solve for x
   x = 2,419,044.56/1,674.72
6. Step 6: Final answer
   x = 1,444.45