Finding the Fourth Proportional to 2,087.83, 3,130.80 and 993.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.83 : 3,130.80 = 993.52 : x
2. Step 2: Convert to fraction form
   2,087.83/3,130.80 = 993.52/x
3. Step 3: Cross multiply
   2,087.83x = 3,130.80 × 993.52
4. Step 4: Simplify right side
   2,087.83x = 3,110,512.42
5. Step 5: Solve for x
   x = 3,110,512.42/2,087.83
6. Step 6: Final answer
   x = 1,489.83