Finding the Fourth Proportional to 1,426.63, 1,968.77 and 837.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.63 : 1,968.77 = 837.18 : x
2. Step 2: Convert to fraction form
   1,426.63/1,968.77 = 837.18/x
3. Step 3: Cross multiply
   1,426.63x = 1,968.77 × 837.18
4. Step 4: Simplify right side
   1,426.63x = 1,648,214.87
5. Step 5: Solve for x
   x = 1,648,214.87/1,426.63
6. Step 6: Final answer
   x = 1,155.32