Finding the Fourth Proportional to 5,559.51, 8,339.72 and 1,663.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,559.51 : 8,339.72 = 1,663.86 : x
2. Step 2: Convert to fraction form
   5,559.51/8,339.72 = 1,663.86/x
3. Step 3: Cross multiply
   5,559.51x = 8,339.72 × 1,663.86
4. Step 4: Simplify right side
   5,559.51x = 13,876,126.52
5. Step 5: Solve for x
   x = 13,876,126.52/5,559.51
6. Step 6: Final answer
   x = 2,495.93