Finding the Fourth Proportional to 2,031.16, 2,804.72 and 1,370.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.16 : 2,804.72 = 1,370.20 : x
2. Step 2: Convert to fraction form
   2,031.16/2,804.72 = 1,370.20/x
3. Step 3: Cross multiply
   2,031.16x = 2,804.72 × 1,370.20
4. Step 4: Simplify right side
   2,031.16x = 3,843,027.34
5. Step 5: Solve for x
   x = 3,843,027.34/2,031.16
6. Step 6: Final answer
   x = 1,892.04