Finding the Fourth Proportional to 1,886.13, 2,827.72 and 898.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.13 : 2,827.72 = 898.43 : x
2. Step 2: Convert to fraction form
   1,886.13/2,827.72 = 898.43/x
3. Step 3: Cross multiply
   1,886.13x = 2,827.72 × 898.43
4. Step 4: Simplify right side
   1,886.13x = 2,540,513.30
5. Step 5: Solve for x
   x = 2,540,513.30/1,886.13
6. Step 6: Final answer
   x = 1,346.94