Finding the Fourth Proportional to 2,490.95, 3,738.87 and 1,900.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.95 : 3,738.87 = 1,900.46 : x
2. Step 2: Convert to fraction form
   2,490.95/3,738.87 = 1,900.46/x
3. Step 3: Cross multiply
   2,490.95x = 3,738.87 × 1,900.46
4. Step 4: Simplify right side
   2,490.95x = 7,105,572.88
5. Step 5: Solve for x
   x = 7,105,572.88/2,490.95
6. Step 6: Final answer
   x = 2,852.56