Finding the Fourth Proportional to 1,896.67, 2,837.49 and 1,780.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,896.67 : 2,837.49 = 1,780.03 : x
2. Step 2: Convert to fraction form
   1,896.67/2,837.49 = 1,780.03/x
3. Step 3: Cross multiply
   1,896.67x = 2,837.49 × 1,780.03
4. Step 4: Simplify right side
   1,896.67x = 5,050,817.32
5. Step 5: Solve for x
   x = 5,050,817.32/1,896.67
6. Step 6: Final answer
   x = 2,662.99