Finding the Fourth Proportional to 2,161.59, 3,242.86 and 700.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.59 : 3,242.86 = 700.89 : x
2. Step 2: Convert to fraction form
   2,161.59/3,242.86 = 700.89/x
3. Step 3: Cross multiply
   2,161.59x = 3,242.86 × 700.89
4. Step 4: Simplify right side
   2,161.59x = 2,272,898.00
5. Step 5: Solve for x
   x = 2,272,898.00/2,161.59
6. Step 6: Final answer
   x = 1,051.49