Finding the Fourth Proportional to 1,886.81, 2,603.67 and 1,047.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.81 : 2,603.67 = 1,047.49 : x
2. Step 2: Convert to fraction form
   1,886.81/2,603.67 = 1,047.49/x
3. Step 3: Cross multiply
   1,886.81x = 2,603.67 × 1,047.49
4. Step 4: Simplify right side
   1,886.81x = 2,727,305.27
5. Step 5: Solve for x
   x = 2,727,305.27/1,886.81
6. Step 6: Final answer
   x = 1,445.46