Finding the Fourth Proportional to 1,426.03, 1,968.85 and 1,276.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.03 : 1,968.85 = 1,276.40 : x
2. Step 2: Convert to fraction form
   1,426.03/1,968.85 = 1,276.40/x
3. Step 3: Cross multiply
   1,426.03x = 1,968.85 × 1,276.40
4. Step 4: Simplify right side
   1,426.03x = 2,513,035.58
5. Step 5: Solve for x
   x = 2,513,035.58/1,426.03
6. Step 6: Final answer
   x = 1,762.26