Finding the Fourth Proportional to 1,890.37, 2,608.52 and 1,051.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.37 : 2,608.52 = 1,051.11 : x
2. Step 2: Convert to fraction form
   1,890.37/2,608.52 = 1,051.11/x
3. Step 3: Cross multiply
   1,890.37x = 2,608.52 × 1,051.11
4. Step 4: Simplify right side
   1,890.37x = 2,741,836.20
5. Step 5: Solve for x
   x = 2,741,836.20/1,890.37
6. Step 6: Final answer
   x = 1,450.42