Finding the Fourth Proportional to 2,376.69, 3,280.05 and 1,329

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.69 : 3,280.05 = 1,329 : x
2. Step 2: Convert to fraction form
   2,376.69/3,280.05 = 1,329/x
3. Step 3: Cross multiply
   2,376.69x = 3,280.05 × 1,329
4. Step 4: Simplify right side
   2,376.69x = 4,359,186.45
5. Step 5: Solve for x
   x = 4,359,186.45/2,376.69
6. Step 6: Final answer
   x = 1,834.14