Finding the Fourth Proportional to 3,516.56, 5,275.16 and 1,436.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,516.56 : 5,275.16 = 1,436.72 : x
2. Step 2: Convert to fraction form
   3,516.56/5,275.16 = 1,436.72/x
3. Step 3: Cross multiply
   3,516.56x = 5,275.16 × 1,436.72
4. Step 4: Simplify right side
   3,516.56x = 7,578,927.88
5. Step 5: Solve for x
   x = 7,578,927.88/3,516.56
6. Step 6: Final answer
   x = 2,155.21