Finding the Fourth Proportional to 1,490.86, 2,055.94 and 993.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.86 : 2,055.94 = 993.52 : x
2. Step 2: Convert to fraction form
   1,490.86/2,055.94 = 993.52/x
3. Step 3: Cross multiply
   1,490.86x = 2,055.94 × 993.52
4. Step 4: Simplify right side
   1,490.86x = 2,042,617.51
5. Step 5: Solve for x
   x = 2,042,617.51/1,490.86
6. Step 6: Final answer
   x = 1,370.09