Finding the Fourth Proportional to 1,898.82, 2,850.06 and 925.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.82 : 2,850.06 = 925.61 : x
2. Step 2: Convert to fraction form
   1,898.82/2,850.06 = 925.61/x
3. Step 3: Cross multiply
   1,898.82x = 2,850.06 × 925.61
4. Step 4: Simplify right side
   1,898.82x = 2,638,025.16
5. Step 5: Solve for x
   x = 2,638,025.16/1,898.82
6. Step 6: Final answer
   x = 1,389.30