Finding the Fourth Proportional to 1,259.21, 1,887.98 and 962.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.21 : 1,887.98 = 962.89 : x
2. Step 2: Convert to fraction form
   1,259.21/1,887.98 = 962.89/x
3. Step 3: Cross multiply
   1,259.21x = 1,887.98 × 962.89
4. Step 4: Simplify right side
   1,259.21x = 1,817,907.53
5. Step 5: Solve for x
   x = 1,817,907.53/1,259.21
6. Step 6: Final answer
   x = 1,443.69