Finding the Fourth Proportional to 2,573.63, 3,551.96 and 1,578.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.63 : 3,551.96 = 1,578.73 : x
2. Step 2: Convert to fraction form
   2,573.63/3,551.96 = 1,578.73/x
3. Step 3: Cross multiply
   2,573.63x = 3,551.96 × 1,578.73
4. Step 4: Simplify right side
   2,573.63x = 5,607,585.81
5. Step 5: Solve for x
   x = 5,607,585.81/2,573.63
6. Step 6: Final answer
   x = 2,178.86