Finding the Fourth Proportional to 1,830.20, 2,743.33 and 790.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,830.20 : 2,743.33 = 790.69 : x
2. Step 2: Convert to fraction form
   1,830.20/2,743.33 = 790.69/x
3. Step 3: Cross multiply
   1,830.20x = 2,743.33 × 790.69
4. Step 4: Simplify right side
   1,830.20x = 2,169,123.60
5. Step 5: Solve for x
   x = 2,169,123.60/1,830.20
6. Step 6: Final answer
   x = 1,185.18