Finding the Fourth Proportional to 1,678.19, 2,314.71 and 1,363.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678.19 : 2,314.71 = 1,363.41 : x
2. Step 2: Convert to fraction form
   1,678.19/2,314.71 = 1,363.41/x
3. Step 3: Cross multiply
   1,678.19x = 2,314.71 × 1,363.41
4. Step 4: Simplify right side
   1,678.19x = 3,155,898.76
5. Step 5: Solve for x
   x = 3,155,898.76/1,678.19
6. Step 6: Final answer
   x = 1,880.54