Finding the Fourth Proportional to 1,786.12, 2,464.76 and 1,039.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.12 : 2,464.76 = 1,039.98 : x
2. Step 2: Convert to fraction form
   1,786.12/2,464.76 = 1,039.98/x
3. Step 3: Cross multiply
   1,786.12x = 2,464.76 × 1,039.98
4. Step 4: Simplify right side
   1,786.12x = 2,563,301.10
5. Step 5: Solve for x
   x = 2,563,301.10/1,786.12
6. Step 6: Final answer
   x = 1,435.12