Finding the Fourth Proportional to 1,785.89, 2,464.29 and 999.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.89 : 2,464.29 = 999.94 : x
2. Step 2: Convert to fraction form
   1,785.89/2,464.29 = 999.94/x
3. Step 3: Cross multiply
   1,785.89x = 2,464.29 × 999.94
4. Step 4: Simplify right side
   1,785.89x = 2,464,139.73
5. Step 5: Solve for x
   x = 2,464,139.73/1,785.89
6. Step 6: Final answer
   x = 1,379.78