Finding the Fourth Proportional to 2,623.55, 3,619.35 and 1,575

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.55 : 3,619.35 = 1,575 : x
2. Step 2: Convert to fraction form
   2,623.55/3,619.35 = 1,575/x
3. Step 3: Cross multiply
   2,623.55x = 3,619.35 × 1,575
4. Step 4: Simplify right side
   2,623.55x = 5,700,476.25
5. Step 5: Solve for x
   x = 5,700,476.25/2,623.55
6. Step 6: Final answer
   x = 2,172.81