Finding the Fourth Proportional to 1,890.63, 2,608.92 and 1,051.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.63 : 2,608.92 = 1,051.37 : x
2. Step 2: Convert to fraction form
   1,890.63/2,608.92 = 1,051.37/x
3. Step 3: Cross multiply
   1,890.63x = 2,608.92 × 1,051.37
4. Step 4: Simplify right side
   1,890.63x = 2,742,940.22
5. Step 5: Solve for x
   x = 2,742,940.22/1,890.63
6. Step 6: Final answer
   x = 1,450.81