Finding the Fourth Proportional to 1,353.43, 1,870.05 and 1,076.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.43 : 1,870.05 = 1,076.11 : x
2. Step 2: Convert to fraction form
   1,353.43/1,870.05 = 1,076.11/x
3. Step 3: Cross multiply
   1,353.43x = 1,870.05 × 1,076.11
4. Step 4: Simplify right side
   1,353.43x = 2,012,378.87
5. Step 5: Solve for x
   x = 2,012,378.87/1,353.43
6. Step 6: Final answer
   x = 1,486.87