Finding the Fourth Proportional to 3,621.24, 5,430.72 and 1,023.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621.24 : 5,430.72 = 1,023.48 : x
2. Step 2: Convert to fraction form
   3,621.24/5,430.72 = 1,023.48/x
3. Step 3: Cross multiply
   3,621.24x = 5,430.72 × 1,023.48
4. Step 4: Simplify right side
   3,621.24x = 5,558,233.31
5. Step 5: Solve for x
   x = 5,558,233.31/3,621.24
6. Step 6: Final answer
   x = 1,534.90