Finding the Fourth Proportional to 2,872.84, 4,309.34 and 1,140.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.84 : 4,309.34 = 1,140.52 : x
2. Step 2: Convert to fraction form
   2,872.84/4,309.34 = 1,140.52/x
3. Step 3: Cross multiply
   2,872.84x = 4,309.34 × 1,140.52
4. Step 4: Simplify right side
   2,872.84x = 4,914,888.46
5. Step 5: Solve for x
   x = 4,914,888.46/2,872.84
6. Step 6: Final answer
   x = 1,710.81