Finding the Fourth Proportional to 2,083.58, 3,126.90 and 987.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.58 : 3,126.90 = 987.94 : x
2. Step 2: Convert to fraction form
   2,083.58/3,126.90 = 987.94/x
3. Step 3: Cross multiply
   2,083.58x = 3,126.90 × 987.94
4. Step 4: Simplify right side
   2,083.58x = 3,089,181.77
5. Step 5: Solve for x
   x = 3,089,181.77/2,083.58
6. Step 6: Final answer
   x = 1,482.63