Finding the Fourth Proportional to 1,930.30, 2,888.61 and 1,200.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,930.30 : 2,888.61 = 1,200.22 : x
2. Step 2: Convert to fraction form
   1,930.30/2,888.61 = 1,200.22/x
3. Step 3: Cross multiply
   1,930.30x = 2,888.61 × 1,200.22
4. Step 4: Simplify right side
   1,930.30x = 3,466,967.49
5. Step 5: Solve for x
   x = 3,466,967.49/1,930.30
6. Step 6: Final answer
   x = 1,796.08