Finding the Fourth Proportional to 2,547.45, 3,513.78 and 2,055.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.45 : 3,513.78 = 2,055.38 : x
2. Step 2: Convert to fraction form
   2,547.45/3,513.78 = 2,055.38/x
3. Step 3: Cross multiply
   2,547.45x = 3,513.78 × 2,055.38
4. Step 4: Simplify right side
   2,547.45x = 7,222,135.57
5. Step 5: Solve for x
   x = 7,222,135.57/2,547.45
6. Step 6: Final answer
   x = 2,835.05