Finding the Fourth Proportional to 2,583.58, 3,875.82 and 939.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.58 : 3,875.82 = 939.98 : x
2. Step 2: Convert to fraction form
   2,583.58/3,875.82 = 939.98/x
3. Step 3: Cross multiply
   2,583.58x = 3,875.82 × 939.98
4. Step 4: Simplify right side
   2,583.58x = 3,643,193.28
5. Step 5: Solve for x
   x = 3,643,193.28/2,583.58
6. Step 6: Final answer
   x = 1,410.13