Finding the Fourth Proportional to 3,672.90, 5,068.59 and 1,994.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,672.90 : 5,068.59 = 1,994.31 : x
2. Step 2: Convert to fraction form
   3,672.90/5,068.59 = 1,994.31/x
3. Step 3: Cross multiply
   3,672.90x = 5,068.59 × 1,994.31
4. Step 4: Simplify right side
   3,672.90x = 10,108,339.72
5. Step 5: Solve for x
   x = 10,108,339.72/3,672.90
6. Step 6: Final answer
   x = 2,752.14