Finding the Fourth Proportional to 2,900.75, 4,003.20 and 1,782.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.75 : 4,003.20 = 1,782.89 : x
2. Step 2: Convert to fraction form
   2,900.75/4,003.20 = 1,782.89/x
3. Step 3: Cross multiply
   2,900.75x = 4,003.20 × 1,782.89
4. Step 4: Simplify right side
   2,900.75x = 7,137,236.32
5. Step 5: Solve for x
   x = 7,137,236.32/2,900.75
6. Step 6: Final answer
   x = 2,460.48