Finding the Fourth Proportional to 5,630.31, 8,437.59 and 2,116.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,630.31 : 8,437.59 = 2,116.76 : x
2. Step 2: Convert to fraction form
   5,630.31/8,437.59 = 2,116.76/x
3. Step 3: Cross multiply
   5,630.31x = 8,437.59 × 2,116.76
4. Step 4: Simplify right side
   5,630.31x = 17,860,310.82
5. Step 5: Solve for x
   x = 17,860,310.82/5,630.31
6. Step 6: Final answer
   x = 3,172.17