Finding the Fourth Proportional to 2,225.58, 3,069.81 and 1,429.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.58 : 3,069.81 = 1,429.16 : x
2. Step 2: Convert to fraction form
   2,225.58/3,069.81 = 1,429.16/x
3. Step 3: Cross multiply
   2,225.58x = 3,069.81 × 1,429.16
4. Step 4: Simplify right side
   2,225.58x = 4,387,234.31
5. Step 5: Solve for x
   x = 4,387,234.31/2,225.58
6. Step 6: Final answer
   x = 1,971.28