Finding the Fourth Proportional to 1,897.56, 2,617.02 and 1,426.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.56 : 2,617.02 = 1,426.60 : x
2. Step 2: Convert to fraction form
   1,897.56/2,617.02 = 1,426.60/x
3. Step 3: Cross multiply
   1,897.56x = 2,617.02 × 1,426.60
4. Step 4: Simplify right side
   1,897.56x = 3,733,440.73
5. Step 5: Solve for x
   x = 3,733,440.73/1,897.56
6. Step 6: Final answer
   x = 1,967.50