Finding the Fourth Proportional to 2,513.32, 3,770.62 and 1,145

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.32 : 3,770.62 = 1,145 : x
2. Step 2: Convert to fraction form
   2,513.32/3,770.62 = 1,145/x
3. Step 3: Cross multiply
   2,513.32x = 3,770.62 × 1,145
4. Step 4: Simplify right side
   2,513.32x = 4,317,359.90
5. Step 5: Solve for x
   x = 4,317,359.90/2,513.32
6. Step 6: Final answer
   x = 1,717.79