Finding the Fourth Proportional to 1,890.08, 2,608.31 and 1,050.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.08 : 2,608.31 = 1,050.76 : x
2. Step 2: Convert to fraction form
   1,890.08/2,608.31 = 1,050.76/x
3. Step 3: Cross multiply
   1,890.08x = 2,608.31 × 1,050.76
4. Step 4: Simplify right side
   1,890.08x = 2,740,707.82
5. Step 5: Solve for x
   x = 2,740,707.82/1,890.08
6. Step 6: Final answer
   x = 1,450.05