Finding the Fourth Proportional to 1,782.50, 2,460.86 and 1,237.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.50 : 2,460.86 = 1,237.78 : x
2. Step 2: Convert to fraction form
   1,782.50/2,460.86 = 1,237.78/x
3. Step 3: Cross multiply
   1,782.50x = 2,460.86 × 1,237.78
4. Step 4: Simplify right side
   1,782.50x = 3,046,003.29
5. Step 5: Solve for x
   x = 3,046,003.29/1,782.50
6. Step 6: Final answer
   x = 1,708.84