Finding the Fourth Proportional to 2,635.02, 3,948.84 and 1,811.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.02 : 3,948.84 = 1,811.22 : x
2. Step 2: Convert to fraction form
   2,635.02/3,948.84 = 1,811.22/x
3. Step 3: Cross multiply
   2,635.02x = 3,948.84 × 1,811.22
4. Step 4: Simplify right side
   2,635.02x = 7,152,217.98
5. Step 5: Solve for x
   x = 7,152,217.98/2,635.02
6. Step 6: Final answer
   x = 2,714.29