Finding the Fourth Proportional to 1,782.77, 2,456.75 and 1,284.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.77 : 2,456.75 = 1,284.46 : x
2. Step 2: Convert to fraction form
   1,782.77/2,456.75 = 1,284.46/x
3. Step 3: Cross multiply
   1,782.77x = 2,456.75 × 1,284.46
4. Step 4: Simplify right side
   1,782.77x = 3,155,600.77
5. Step 5: Solve for x
   x = 3,155,600.77/1,782.77
6. Step 6: Final answer
   x = 1,770.06