Finding the Fourth Proportional to 3,554.56, 5,343.57 and 2,521.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554.56 : 5,343.57 = 2,521.96 : x
2. Step 2: Convert to fraction form
   3,554.56/5,343.57 = 2,521.96/x
3. Step 3: Cross multiply
   3,554.56x = 5,343.57 × 2,521.96
4. Step 4: Simplify right side
   3,554.56x = 13,476,271.47
5. Step 5: Solve for x
   x = 13,476,271.47/3,554.56
6. Step 6: Final answer
   x = 3,791.26