Finding the Fourth Proportional to 1,452.74, 2,165.43 and 1,336.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.74 : 2,165.43 = 1,336.10 : x
2. Step 2: Convert to fraction form
   1,452.74/2,165.43 = 1,336.10/x
3. Step 3: Cross multiply
   1,452.74x = 2,165.43 × 1,336.10
4. Step 4: Simplify right side
   1,452.74x = 2,893,224.34
5. Step 5: Solve for x
   x = 2,893,224.34/1,452.74
6. Step 6: Final answer
   x = 1,991.56