Finding the Fourth Proportional to 3,645.70, 5,468.58 and 1,048.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.70 : 5,468.58 = 1,048.72 : x
2. Step 2: Convert to fraction form
   3,645.70/5,468.58 = 1,048.72/x
3. Step 3: Cross multiply
   3,645.70x = 5,468.58 × 1,048.72
4. Step 4: Simplify right side
   3,645.70x = 5,735,009.22
5. Step 5: Solve for x
   x = 5,735,009.22/3,645.70
6. Step 6: Final answer
   x = 1,573.09