Finding the Fourth Proportional to 2,013.55, 2,782.17 and 1,663.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.55 : 2,782.17 = 1,663.63 : x
2. Step 2: Convert to fraction form
   2,013.55/2,782.17 = 1,663.63/x
3. Step 3: Cross multiply
   2,013.55x = 2,782.17 × 1,663.63
4. Step 4: Simplify right side
   2,013.55x = 4,628,501.48
5. Step 5: Solve for x
   x = 4,628,501.48/2,013.55
6. Step 6: Final answer
   x = 2,298.68