Finding the Fourth Proportional to 1,678.69, 2,316.55 and 932.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.69 : 2,316.55 = 932.62 : x
2. Step 2: Convert to fraction form
   1,678.69/2,316.55 = 932.62/x
3. Step 3: Cross multiply
   1,678.69x = 2,316.55 × 932.62
4. Step 4: Simplify right side
   1,678.69x = 2,160,464.32
5. Step 5: Solve for x
   x = 2,160,464.32/1,678.69
6. Step 6: Final answer
   x = 1,286.99