Finding the Fourth Proportional to 1,870.44, 2,804.67 and 993.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.44 : 2,804.67 = 993.43 : x
2. Step 2: Convert to fraction form
   1,870.44/2,804.67 = 993.43/x
3. Step 3: Cross multiply
   1,870.44x = 2,804.67 × 993.43
4. Step 4: Simplify right side
   1,870.44x = 2,786,243.32
5. Step 5: Solve for x
   x = 2,786,243.32/1,870.44
6. Step 6: Final answer
   x = 1,489.62