Finding the Fourth Proportional to 1,974.37, 2,727.89 and 1,557.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974.37 : 2,727.89 = 1,557.89 : x
2. Step 2: Convert to fraction form
   1,974.37/2,727.89 = 1,557.89/x
3. Step 3: Cross multiply
   1,974.37x = 2,727.89 × 1,557.89
4. Step 4: Simplify right side
   1,974.37x = 4,249,738.91
5. Step 5: Solve for x
   x = 4,249,738.91/1,974.37
6. Step 6: Final answer
   x = 2,152.46