Finding the Fourth Proportional to 2,557.01, 3,528.47 and 1,437.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.01 : 3,528.47 = 1,437.73 : x
2. Step 2: Convert to fraction form
   2,557.01/3,528.47 = 1,437.73/x
3. Step 3: Cross multiply
   2,557.01x = 3,528.47 × 1,437.73
4. Step 4: Simplify right side
   2,557.01x = 5,072,979.98
5. Step 5: Solve for x
   x = 5,072,979.98/2,557.01
6. Step 6: Final answer
   x = 1,983.95