Finding the Fourth Proportional to 1,886.83, 2,603.54 and 1,047.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.83 : 2,603.54 = 1,047.40 : x
2. Step 2: Convert to fraction form
   1,886.83/2,603.54 = 1,047.40/x
3. Step 3: Cross multiply
   1,886.83x = 2,603.54 × 1,047.40
4. Step 4: Simplify right side
   1,886.83x = 2,726,943.91
5. Step 5: Solve for x
   x = 2,726,943.91/1,886.83
6. Step 6: Final answer
   x = 1,445.25