Finding the Fourth Proportional to 1,409.74, 2,111.37 and 922.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.74 : 2,111.37 = 922.12 : x
2. Step 2: Convert to fraction form
   1,409.74/2,111.37 = 922.12/x
3. Step 3: Cross multiply
   1,409.74x = 2,111.37 × 922.12
4. Step 4: Simplify right side
   1,409.74x = 1,946,936.50
5. Step 5: Solve for x
   x = 1,946,936.50/1,409.74
6. Step 6: Final answer
   x = 1,381.06