Finding the Fourth Proportional to 2,630.00, 3,945.69 and 987.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.00 : 3,945.69 = 987.02 : x
2. Step 2: Convert to fraction form
   2,630.00/3,945.69 = 987.02/x
3. Step 3: Cross multiply
   2,630.00x = 3,945.69 × 987.02
4. Step 4: Simplify right side
   2,630.00x = 3,894,455.22
5. Step 5: Solve for x
   x = 3,894,455.22/2,630.00
6. Step 6: Final answer
   x = 1,480.78