Finding the Fourth Proportional to 2,269.68, 3,132.30 and 1,385.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.68 : 3,132.30 = 1,385.34 : x
2. Step 2: Convert to fraction form
   2,269.68/3,132.30 = 1,385.34/x
3. Step 3: Cross multiply
   2,269.68x = 3,132.30 × 1,385.34
4. Step 4: Simplify right side
   2,269.68x = 4,339,300.48
5. Step 5: Solve for x
   x = 4,339,300.48/2,269.68
6. Step 6: Final answer
   x = 1,911.86