Finding the Fourth Proportional to 1,531.85, 2,110.25 and 1,437.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.85 : 2,110.25 = 1,437.89 : x
2. Step 2: Convert to fraction form
   1,531.85/2,110.25 = 1,437.89/x
3. Step 3: Cross multiply
   1,531.85x = 2,110.25 × 1,437.89
4. Step 4: Simplify right side
   1,531.85x = 3,034,300.42
5. Step 5: Solve for x
   x = 3,034,300.42/1,531.85
6. Step 6: Final answer
   x = 1,980.81