Finding the Fourth Proportional to 2,269.33, 3,131.53 and 1,384.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.33 : 3,131.53 = 1,384.94 : x
2. Step 2: Convert to fraction form
   2,269.33/3,131.53 = 1,384.94/x
3. Step 3: Cross multiply
   2,269.33x = 3,131.53 × 1,384.94
4. Step 4: Simplify right side
   2,269.33x = 4,336,985.52
5. Step 5: Solve for x
   x = 4,336,985.52/2,269.33
6. Step 6: Final answer
   x = 1,911.13