Finding the Fourth Proportional to 1,782.50, 2,460.81 and 1,231.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.50 : 2,460.81 = 1,231.46 : x
2. Step 2: Convert to fraction form
   1,782.50/2,460.81 = 1,231.46/x
3. Step 3: Cross multiply
   1,782.50x = 2,460.81 × 1,231.46
4. Step 4: Simplify right side
   1,782.50x = 3,030,389.08
5. Step 5: Solve for x
   x = 3,030,389.08/1,782.50
6. Step 6: Final answer
   x = 1,700.08