Finding the Fourth Proportional to 1,946.76, 2,685.53 and 1,317.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946.76 : 2,685.53 = 1,317.31 : x
2. Step 2: Convert to fraction form
   1,946.76/2,685.53 = 1,317.31/x
3. Step 3: Cross multiply
   1,946.76x = 2,685.53 × 1,317.31
4. Step 4: Simplify right side
   1,946.76x = 3,537,683.50
5. Step 5: Solve for x
   x = 3,537,683.50/1,946.76
6. Step 6: Final answer
   x = 1,817.22