Finding the Fourth Proportional to 3,415.46, 5,111.31 and 2,098.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,415.46 : 5,111.31 = 2,098.63 : x
2. Step 2: Convert to fraction form
   3,415.46/5,111.31 = 2,098.63/x
3. Step 3: Cross multiply
   3,415.46x = 5,111.31 × 2,098.63
4. Step 4: Simplify right side
   3,415.46x = 10,726,722.95
5. Step 5: Solve for x
   x = 10,726,722.95/3,415.46
6. Step 6: Final answer
   x = 3,140.64