Finding the Fourth Proportional to 1,601.88, 2,209.50 and 1,437.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.88 : 2,209.50 = 1,437.72 : x
2. Step 2: Convert to fraction form
   1,601.88/2,209.50 = 1,437.72/x
3. Step 3: Cross multiply
   1,601.88x = 2,209.50 × 1,437.72
4. Step 4: Simplify right side
   1,601.88x = 3,176,642.34
5. Step 5: Solve for x
   x = 3,176,642.34/1,601.88
6. Step 6: Final answer
   x = 1,983.07