Finding the Fourth Proportional to 2,156.69, 3,234.60 and 751.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.69 : 3,234.60 = 751.05 : x
2. Step 2: Convert to fraction form
   2,156.69/3,234.60 = 751.05/x
3. Step 3: Cross multiply
   2,156.69x = 3,234.60 × 751.05
4. Step 4: Simplify right side
   2,156.69x = 2,429,346.33
5. Step 5: Solve for x
   x = 2,429,346.33/2,156.69
6. Step 6: Final answer
   x = 1,126.42