Finding the Fourth Proportional to 1,427.33, 1,970.42 and 896.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.33 : 1,970.42 = 896.98 : x
2. Step 2: Convert to fraction form
   1,427.33/1,970.42 = 896.98/x
3. Step 3: Cross multiply
   1,427.33x = 1,970.42 × 896.98
4. Step 4: Simplify right side
   1,427.33x = 1,767,432.04
5. Step 5: Solve for x
   x = 1,767,432.04/1,427.33
6. Step 6: Final answer
   x = 1,238.28