Finding the Fourth Proportional to 1,573.57, 2,169.52 and 983.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.57 : 2,169.52 = 983.89 : x
2. Step 2: Convert to fraction form
   1,573.57/2,169.52 = 983.89/x
3. Step 3: Cross multiply
   1,573.57x = 2,169.52 × 983.89
4. Step 4: Simplify right side
   1,573.57x = 2,134,569.03
5. Step 5: Solve for x
   x = 2,134,569.03/1,573.57
6. Step 6: Final answer
   x = 1,356.51