Finding the Fourth Proportional to 1,663.63, 2,279.17 and 1,601.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663.63 : 2,279.17 = 1,601.32 : x
2. Step 2: Convert to fraction form
   1,663.63/2,279.17 = 1,601.32/x
3. Step 3: Cross multiply
   1,663.63x = 2,279.17 × 1,601.32
4. Step 4: Simplify right side
   1,663.63x = 3,649,680.50
5. Step 5: Solve for x
   x = 3,649,680.50/1,663.63
6. Step 6: Final answer
   x = 2,193.81