Finding the Fourth Proportional to 1,458.16, 2,172.50 and 1,384.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.16 : 2,172.50 = 1,384.72 : x
2. Step 2: Convert to fraction form
   1,458.16/2,172.50 = 1,384.72/x
3. Step 3: Cross multiply
   1,458.16x = 2,172.50 × 1,384.72
4. Step 4: Simplify right side
   1,458.16x = 3,008,304.20
5. Step 5: Solve for x
   x = 3,008,304.20/1,458.16
6. Step 6: Final answer
   x = 2,063.08