Finding the Fourth Proportional to 1,437.55, 2,151.37 and 881.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.55 : 2,151.37 = 881.89 : x
2. Step 2: Convert to fraction form
   1,437.55/2,151.37 = 881.89/x
3. Step 3: Cross multiply
   1,437.55x = 2,151.37 × 881.89
4. Step 4: Simplify right side
   1,437.55x = 1,897,271.69
5. Step 5: Solve for x
   x = 1,897,271.69/1,437.55
6. Step 6: Final answer
   x = 1,319.80