Finding the Fourth Proportional to 1,898.18, 2,845.41 and 910.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.18 : 2,845.41 = 910.71 : x
2. Step 2: Convert to fraction form
   1,898.18/2,845.41 = 910.71/x
3. Step 3: Cross multiply
   1,898.18x = 2,845.41 × 910.71
4. Step 4: Simplify right side
   1,898.18x = 2,591,343.34
5. Step 5: Solve for x
   x = 2,591,343.34/1,898.18
6. Step 6: Final answer
   x = 1,365.17