Finding the Fourth Proportional to 1,338.72, 1,847.16 and 897.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.72 : 1,847.16 = 897.18 : x
2. Step 2: Convert to fraction form
   1,338.72/1,847.16 = 897.18/x
3. Step 3: Cross multiply
   1,338.72x = 1,847.16 × 897.18
4. Step 4: Simplify right side
   1,338.72x = 1,657,235.01
5. Step 5: Solve for x
   x = 1,657,235.01/1,338.72
6. Step 6: Final answer
   x = 1,237.93