Finding the Fourth Proportional to 1,426.52, 1,968.58 and 837.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.52 : 1,968.58 = 837.40 : x
2. Step 2: Convert to fraction form
   1,426.52/1,968.58 = 837.40/x
3. Step 3: Cross multiply
   1,426.52x = 1,968.58 × 837.40
4. Step 4: Simplify right side
   1,426.52x = 1,648,488.89
5. Step 5: Solve for x
   x = 1,648,488.89/1,426.52
6. Step 6: Final answer
   x = 1,155.60