Finding the Fourth Proportional to 1,684.15, 2,323.89 and 938.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.15 : 2,323.89 = 938.01 : x
2. Step 2: Convert to fraction form
   1,684.15/2,323.89 = 938.01/x
3. Step 3: Cross multiply
   1,684.15x = 2,323.89 × 938.01
4. Step 4: Simplify right side
   1,684.15x = 2,179,815.75
5. Step 5: Solve for x
   x = 2,179,815.75/1,684.15
6. Step 6: Final answer
   x = 1,294.32