Finding the Fourth Proportional to 3,378.78, 5,066.76 and 1,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,378.78 : 5,066.76 = 1,404.72 : x
2. Step 2: Convert to fraction form
   3,378.78/5,066.76 = 1,404.72/x
3. Step 3: Cross multiply
   3,378.78x = 5,066.76 × 1,404.72
4. Step 4: Simplify right side
   3,378.78x = 7,117,379.11
5. Step 5: Solve for x
   x = 7,117,379.11/3,378.78
6. Step 6: Final answer
   x = 2,106.49