Finding the Fourth Proportional to 2,361.68, 3,525.52 and 2,190.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,361.68 : 3,525.52 = 2,190.72 : x
2. Step 2: Convert to fraction form
   2,361.68/3,525.52 = 2,190.72/x
3. Step 3: Cross multiply
   2,361.68x = 3,525.52 × 2,190.72
4. Step 4: Simplify right side
   2,361.68x = 7,723,427.17
5. Step 5: Solve for x
   x = 7,723,427.17/2,361.68
6. Step 6: Final answer
   x = 3,270.31