Finding the Fourth Proportional to 1,922.90, 2,653.83 and 1,259.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.90 : 2,653.83 = 1,259.91 : x
2. Step 2: Convert to fraction form
   1,922.90/2,653.83 = 1,259.91/x
3. Step 3: Cross multiply
   1,922.90x = 2,653.83 × 1,259.91
4. Step 4: Simplify right side
   1,922.90x = 3,343,586.96
5. Step 5: Solve for x
   x = 3,343,586.96/1,922.90
6. Step 6: Final answer
   x = 1,738.83