Finding the Fourth Proportional to 1,785.49, 2,463.78 and 999.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.49 : 2,463.78 = 999.52 : x
2. Step 2: Convert to fraction form
   1,785.49/2,463.78 = 999.52/x
3. Step 3: Cross multiply
   1,785.49x = 2,463.78 × 999.52
4. Step 4: Simplify right side
   1,785.49x = 2,462,597.39
5. Step 5: Solve for x
   x = 2,462,597.39/1,785.49
6. Step 6: Final answer
   x = 1,379.23