Finding the Fourth Proportional to 2,623.12, 3,620.40 and 1,575.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.12 : 3,620.40 = 1,575.52 : x
2. Step 2: Convert to fraction form
   2,623.12/3,620.40 = 1,575.52/x
3. Step 3: Cross multiply
   2,623.12x = 3,620.40 × 1,575.52
4. Step 4: Simplify right side
   2,623.12x = 5,704,012.61
5. Step 5: Solve for x
   x = 5,704,012.61/2,623.12
6. Step 6: Final answer
   x = 2,174.51