Finding the Fourth Proportional to 1,900.12, 2,611.57 and 1,677.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.12 : 2,611.57 = 1,677.73 : x
2. Step 2: Convert to fraction form
   1,900.12/2,611.57 = 1,677.73/x
3. Step 3: Cross multiply
   1,900.12x = 2,611.57 × 1,677.73
4. Step 4: Simplify right side
   1,900.12x = 4,381,509.34
5. Step 5: Solve for x
   x = 4,381,509.34/1,900.12
6. Step 6: Final answer
   x = 2,305.91