Finding the Fourth Proportional to 2,199.98, 3,035.93 and 1,315.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,199.98 : 3,035.93 = 1,315.28 : x
2. Step 2: Convert to fraction form
   2,199.98/3,035.93 = 1,315.28/x
3. Step 3: Cross multiply
   2,199.98x = 3,035.93 × 1,315.28
4. Step 4: Simplify right side
   2,199.98x = 3,993,076.25
5. Step 5: Solve for x
   x = 3,993,076.25/2,199.98
6. Step 6: Final answer
   x = 1,815.06