Finding the Fourth Proportional to 3,777.66, 5,664.72 and 1,404.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.66 : 5,664.72 = 1,404.09 : x
2. Step 2: Convert to fraction form
   3,777.66/5,664.72 = 1,404.09/x
3. Step 3: Cross multiply
   3,777.66x = 5,664.72 × 1,404.09
4. Step 4: Simplify right side
   3,777.66x = 7,953,776.70
5. Step 5: Solve for x
   x = 7,953,776.70/3,777.66
6. Step 6: Final answer
   x = 2,105.48