Finding the Fourth Proportional to 1,759.59, 2,636.91 and 938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,759.59 : 2,636.91 = 938.25 : x
2. Step 2: Convert to fraction form
   1,759.59/2,636.91 = 938.25/x
3. Step 3: Cross multiply
   1,759.59x = 2,636.91 × 938.25
4. Step 4: Simplify right side
   1,759.59x = 2,474,080.81
5. Step 5: Solve for x
   x = 2,474,080.81/1,759.59
6. Step 6: Final answer
   x = 1,406.06