Finding the Fourth Proportional to 1,759.89, 2,641.43 and 938.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,759.89 : 2,641.43 = 938.86 : x
2. Step 2: Convert to fraction form
   1,759.89/2,641.43 = 938.86/x
3. Step 3: Cross multiply
   1,759.89x = 2,641.43 × 938.86
4. Step 4: Simplify right side
   1,759.89x = 2,479,928.71
5. Step 5: Solve for x
   x = 2,479,928.71/1,759.89
6. Step 6: Final answer
   x = 1,409.14