Finding the Fourth Proportional to 2,175.55, 3,263.27 and 2,153.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.55 : 3,263.27 = 2,153.98 : x
2. Step 2: Convert to fraction form
   2,175.55/3,263.27 = 2,153.98/x
3. Step 3: Cross multiply
   2,175.55x = 3,263.27 × 2,153.98
4. Step 4: Simplify right side
   2,175.55x = 7,029,018.31
5. Step 5: Solve for x
   x = 7,029,018.31/2,175.55
6. Step 6: Final answer
   x = 3,230.92