Finding the Fourth Proportional to 1,409.89, 1,943.73 and 937.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.89 : 1,943.73 = 937.81 : x
2. Step 2: Convert to fraction form
   1,409.89/1,943.73 = 937.81/x
3. Step 3: Cross multiply
   1,409.89x = 1,943.73 × 937.81
4. Step 4: Simplify right side
   1,409.89x = 1,822,851.86
5. Step 5: Solve for x
   x = 1,822,851.86/1,409.89
6. Step 6: Final answer
   x = 1,292.90