Finding the Fourth Proportional to 2,186.72, 3,014.16 and 1,478.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.72 : 3,014.16 = 1,478.34 : x
2. Step 2: Convert to fraction form
   2,186.72/3,014.16 = 1,478.34/x
3. Step 3: Cross multiply
   2,186.72x = 3,014.16 × 1,478.34
4. Step 4: Simplify right side
   2,186.72x = 4,455,953.29
5. Step 5: Solve for x
   x = 4,455,953.29/2,186.72
6. Step 6: Final answer
   x = 2,037.74