Finding the Fourth Proportional to 2,175.38, 2,996.96 and 1,780.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.38 : 2,996.96 = 1,780.10 : x
2. Step 2: Convert to fraction form
   2,175.38/2,996.96 = 1,780.10/x
3. Step 3: Cross multiply
   2,175.38x = 2,996.96 × 1,780.10
4. Step 4: Simplify right side
   2,175.38x = 5,334,888.50
5. Step 5: Solve for x
   x = 5,334,888.50/2,175.38
6. Step 6: Final answer
   x = 2,452.39