Finding the Fourth Proportional to 1,410.63, 2,113.17 and 922.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.63 : 2,113.17 = 922.20 : x
2. Step 2: Convert to fraction form
   1,410.63/2,113.17 = 922.20/x
3. Step 3: Cross multiply
   1,410.63x = 2,113.17 × 922.20
4. Step 4: Simplify right side
   1,410.63x = 1,948,765.37
5. Step 5: Solve for x
   x = 1,948,765.37/1,410.63
6. Step 6: Final answer
   x = 1,381.49