Finding the Fourth Proportional to 2,624.16, 3,620.52 and 1,574.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.16 : 3,620.52 = 1,574.40 : x
2. Step 2: Convert to fraction form
   2,624.16/3,620.52 = 1,574.40/x
3. Step 3: Cross multiply
   2,624.16x = 3,620.52 × 1,574.40
4. Step 4: Simplify right side
   2,624.16x = 5,700,146.69
5. Step 5: Solve for x
   x = 5,700,146.69/2,624.16
6. Step 6: Final answer
   x = 2,172.18