Finding the Fourth Proportional to 1,450.16, 2,157.79 and 1,445.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.16 : 2,157.79 = 1,445.30 : x
2. Step 2: Convert to fraction form
   1,450.16/2,157.79 = 1,445.30/x
3. Step 3: Cross multiply
   1,450.16x = 2,157.79 × 1,445.30
4. Step 4: Simplify right side
   1,450.16x = 3,118,653.89
5. Step 5: Solve for x
   x = 3,118,653.89/1,450.16
6. Step 6: Final answer
   x = 2,150.56