Finding the Fourth Proportional to 1,949.78, 2,925.69 and 1,490.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.78 : 2,925.69 = 1,490.51 : x
2. Step 2: Convert to fraction form
   1,949.78/2,925.69 = 1,490.51/x
3. Step 3: Cross multiply
   1,949.78x = 2,925.69 × 1,490.51
4. Step 4: Simplify right side
   1,949.78x = 4,360,771.93
5. Step 5: Solve for x
   x = 4,360,771.93/1,949.78
6. Step 6: Final answer
   x = 2,236.54