Finding the Fourth Proportional to 1,338.57, 1,847.86 and 896.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.57 : 1,847.86 = 896.76 : x
2. Step 2: Convert to fraction form
   1,338.57/1,847.86 = 896.76/x
3. Step 3: Cross multiply
   1,338.57x = 1,847.86 × 896.76
4. Step 4: Simplify right side
   1,338.57x = 1,657,084.69
5. Step 5: Solve for x
   x = 1,657,084.69/1,338.57
6. Step 6: Final answer
   x = 1,237.95