Finding the Fourth Proportional to 1,946.57, 2,916.34 and 1,068.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946.57 : 2,916.34 = 1,068.12 : x
2. Step 2: Convert to fraction form
   1,946.57/2,916.34 = 1,068.12/x
3. Step 3: Cross multiply
   1,946.57x = 2,916.34 × 1,068.12
4. Step 4: Simplify right side
   1,946.57x = 3,114,998.41
5. Step 5: Solve for x
   x = 3,114,998.41/1,946.57
6. Step 6: Final answer
   x = 1,600.25