Finding the Fourth Proportional to 2,269.77, 3,132.32 and 1,385.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.77 : 3,132.32 = 1,385.43 : x
2. Step 2: Convert to fraction form
   2,269.77/3,132.32 = 1,385.43/x
3. Step 3: Cross multiply
   2,269.77x = 3,132.32 × 1,385.43
4. Step 4: Simplify right side
   2,269.77x = 4,339,603.17
5. Step 5: Solve for x
   x = 4,339,603.17/2,269.77
6. Step 6: Final answer
   x = 1,911.91