Finding the Fourth Proportional to 1,916.86, 2,643.78 and 1,446.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.86 : 2,643.78 = 1,446.34 : x
2. Step 2: Convert to fraction form
   1,916.86/2,643.78 = 1,446.34/x
3. Step 3: Cross multiply
   1,916.86x = 2,643.78 × 1,446.34
4. Step 4: Simplify right side
   1,916.86x = 3,823,804.77
5. Step 5: Solve for x
   x = 3,823,804.77/1,916.86
6. Step 6: Final answer
   x = 1,994.83