Finding the Fourth Proportional to 1,411.02, 2,116.94 and 923.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.02 : 2,116.94 = 923.47 : x
2. Step 2: Convert to fraction form
   1,411.02/2,116.94 = 923.47/x
3. Step 3: Cross multiply
   1,411.02x = 2,116.94 × 923.47
4. Step 4: Simplify right side
   1,411.02x = 1,954,920.67
5. Step 5: Solve for x
   x = 1,954,920.67/1,411.02
6. Step 6: Final answer
   x = 1,385.47