Finding the Fourth Proportional to 1,759.88, 2,428.64 and 1,061.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,759.88 : 2,428.64 = 1,061.39 : x
2. Step 2: Convert to fraction form
   1,759.88/2,428.64 = 1,061.39/x
3. Step 3: Cross multiply
   1,759.88x = 2,428.64 × 1,061.39
4. Step 4: Simplify right side
   1,759.88x = 2,577,716.76
5. Step 5: Solve for x
   x = 2,577,716.76/1,759.88
6. Step 6: Final answer
   x = 1,464.72