Finding the Fourth Proportional to 3,099.02, 4,648.78 and 790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,099.02 : 4,648.78 = 790.50 : x
2. Step 2: Convert to fraction form
   3,099.02/4,648.78 = 790.50/x
3. Step 3: Cross multiply
   3,099.02x = 4,648.78 × 790.50
4. Step 4: Simplify right side
   3,099.02x = 3,674,860.59
5. Step 5: Solve for x
   x = 3,674,860.59/3,099.02
6. Step 6: Final answer
   x = 1,185.81