Finding the Fourth Proportional to 2,415.51, 3,330.59 and 2,240.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.51 : 3,330.59 = 2,240.55 : x
2. Step 2: Convert to fraction form
   2,415.51/3,330.59 = 2,240.55/x
3. Step 3: Cross multiply
   2,415.51x = 3,330.59 × 2,240.55
4. Step 4: Simplify right side
   2,415.51x = 7,462,342.22
5. Step 5: Solve for x
   x = 7,462,342.22/2,415.51
6. Step 6: Final answer
   x = 3,089.34