Finding the Fourth Proportional to 1,886.37, 2,831.98 and 1,021.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.37 : 2,831.98 = 1,021.29 : x
2. Step 2: Convert to fraction form
   1,886.37/2,831.98 = 1,021.29/x
3. Step 3: Cross multiply
   1,886.37x = 2,831.98 × 1,021.29
4. Step 4: Simplify right side
   1,886.37x = 2,892,272.85
5. Step 5: Solve for x
   x = 2,892,272.85/1,886.37
6. Step 6: Final answer
   x = 1,533.25