Finding the Fourth Proportional to 2,187.56, 3,018.51 and 1,597.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.56 : 3,018.51 = 1,597.07 : x
2. Step 2: Convert to fraction form
   2,187.56/3,018.51 = 1,597.07/x
3. Step 3: Cross multiply
   2,187.56x = 3,018.51 × 1,597.07
4. Step 4: Simplify right side
   2,187.56x = 4,820,756.67
5. Step 5: Solve for x
   x = 4,820,756.67/2,187.56
6. Step 6: Final answer
   x = 2,203.72