Finding the Fourth Proportional to 1,437.98, 2,155.28 and 1,422.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.98 : 2,155.28 = 1,422.59 : x
2. Step 2: Convert to fraction form
   1,437.98/2,155.28 = 1,422.59/x
3. Step 3: Cross multiply
   1,437.98x = 2,155.28 × 1,422.59
4. Step 4: Simplify right side
   1,437.98x = 3,066,061.89
5. Step 5: Solve for x
   x = 3,066,061.89/1,437.98
6. Step 6: Final answer
   x = 2,132.21