Finding the Fourth Proportional to 1,550.34, 2,138.76 and 1,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.34 : 2,138.76 = 1,026.72 : x
2. Step 2: Convert to fraction form
   1,550.34/2,138.76 = 1,026.72/x
3. Step 3: Cross multiply
   1,550.34x = 2,138.76 × 1,026.72
4. Step 4: Simplify right side
   1,550.34x = 2,195,907.67
5. Step 5: Solve for x
   x = 2,195,907.67/1,550.34
6. Step 6: Final answer
   x = 1,416.40