Finding the Fourth Proportional to 2,629.85, 3,946.93 and 899.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.85 : 3,946.93 = 899.69 : x
2. Step 2: Convert to fraction form
   2,629.85/3,946.93 = 899.69/x
3. Step 3: Cross multiply
   2,629.85x = 3,946.93 × 899.69
4. Step 4: Simplify right side
   2,629.85x = 3,550,991.47
5. Step 5: Solve for x
   x = 3,550,991.47/2,629.85
6. Step 6: Final answer
   x = 1,350.27