Finding the Fourth Proportional to 1,053.86, 1,581.82 and 995.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.86 : 1,581.82 = 995.43 : x
2. Step 2: Convert to fraction form
   1,053.86/1,581.82 = 995.43/x
3. Step 3: Cross multiply
   1,053.86x = 1,581.82 × 995.43
4. Step 4: Simplify right side
   1,053.86x = 1,574,582.00
5. Step 5: Solve for x
   x = 1,574,582.00/1,053.86
6. Step 6: Final answer
   x = 1,494.11