Finding the Fourth Proportional to 2,415.83, 3,333.35 and 1,668.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.83 : 3,333.35 = 1,668.60 : x
2. Step 2: Convert to fraction form
   2,415.83/3,333.35 = 1,668.60/x
3. Step 3: Cross multiply
   2,415.83x = 3,333.35 × 1,668.60
4. Step 4: Simplify right side
   2,415.83x = 5,562,031.98
5. Step 5: Solve for x
   x = 5,562,031.98/2,415.83
6. Step 6: Final answer
   x = 2,302.33