Finding the Fourth Proportional to 2,360.09, 3,538.78 and 898.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,360.09 : 3,538.78 = 898.31 : x
2. Step 2: Convert to fraction form
   2,360.09/3,538.78 = 898.31/x
3. Step 3: Cross multiply
   2,360.09x = 3,538.78 × 898.31
4. Step 4: Simplify right side
   2,360.09x = 3,178,921.46
5. Step 5: Solve for x
   x = 3,178,921.46/2,360.09
6. Step 6: Final answer
   x = 1,346.95