Finding the Fourth Proportional to 1,796.18, 2,478.57 and 999.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,796.18 : 2,478.57 = 999.47 : x
2. Step 2: Convert to fraction form
   1,796.18/2,478.57 = 999.47/x
3. Step 3: Cross multiply
   1,796.18x = 2,478.57 × 999.47
4. Step 4: Simplify right side
   1,796.18x = 2,477,243.97
5. Step 5: Solve for x
   x = 2,477,243.97/1,796.18
6. Step 6: Final answer
   x = 1,379.18