Finding the Fourth Proportional to 1,786.05, 2,464.59 and 999.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.05 : 2,464.59 = 999.93 : x
2. Step 2: Convert to fraction form
   1,786.05/2,464.59 = 999.93/x
3. Step 3: Cross multiply
   1,786.05x = 2,464.59 × 999.93
4. Step 4: Simplify right side
   1,786.05x = 2,464,417.48
5. Step 5: Solve for x
   x = 2,464,417.48/1,786.05
6. Step 6: Final answer
   x = 1,379.81