Finding the Fourth Proportional to 2,506.19, 3,756.78 and 945.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,506.19 : 3,756.78 = 945.72 : x
2. Step 2: Convert to fraction form
   2,506.19/3,756.78 = 945.72/x
3. Step 3: Cross multiply
   2,506.19x = 3,756.78 × 945.72
4. Step 4: Simplify right side
   2,506.19x = 3,552,861.98
5. Step 5: Solve for x
   x = 3,552,861.98/2,506.19
6. Step 6: Final answer
   x = 1,417.64