Finding the Fourth Proportional to 2,087.46, 3,131.66 and 700.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.46 : 3,131.66 = 700.88 : x
2. Step 2: Convert to fraction form
   2,087.46/3,131.66 = 700.88/x
3. Step 3: Cross multiply
   2,087.46x = 3,131.66 × 700.88
4. Step 4: Simplify right side
   2,087.46x = 2,194,917.86
5. Step 5: Solve for x
   x = 2,194,917.86/2,087.46
6. Step 6: Final answer
   x = 1,051.48