Finding the Fourth Proportional to 1,405.74, 1,940.02 and 846.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.74 : 1,940.02 = 846.34 : x
2. Step 2: Convert to fraction form
   1,405.74/1,940.02 = 846.34/x
3. Step 3: Cross multiply
   1,405.74x = 1,940.02 × 846.34
4. Step 4: Simplify right side
   1,405.74x = 1,641,916.53
5. Step 5: Solve for x
   x = 1,641,916.53/1,405.74
6. Step 6: Final answer
   x = 1,168.01