Finding the Fourth Proportional to 2,152.42, 2,971.80 and 1,445.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.42 : 2,971.80 = 1,445.32 : x
2. Step 2: Convert to fraction form
   2,152.42/2,971.80 = 1,445.32/x
3. Step 3: Cross multiply
   2,152.42x = 2,971.80 × 1,445.32
4. Step 4: Simplify right side
   2,152.42x = 4,295,187.12
5. Step 5: Solve for x
   x = 4,295,187.12/2,152.42
6. Step 6: Final answer
   x = 1,995.52