Finding the Fourth Proportional to 1,900.58, 2,851.34 and 1,121.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.58 : 2,851.34 = 1,121.22 : x
2. Step 2: Convert to fraction form
   1,900.58/2,851.34 = 1,121.22/x
3. Step 3: Cross multiply
   1,900.58x = 2,851.34 × 1,121.22
4. Step 4: Simplify right side
   1,900.58x = 3,196,973.83
5. Step 5: Solve for x
   x = 3,196,973.83/1,900.58
6. Step 6: Final answer
   x = 1,682.11