Finding the Fourth Proportional to 1,820.31, 2,729.89 and 942.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.31 : 2,729.89 = 942.54 : x
2. Step 2: Convert to fraction form
   1,820.31/2,729.89 = 942.54/x
3. Step 3: Cross multiply
   1,820.31x = 2,729.89 × 942.54
4. Step 4: Simplify right side
   1,820.31x = 2,573,030.52
5. Step 5: Solve for x
   x = 2,573,030.52/1,820.31
6. Step 6: Final answer
   x = 1,413.51