Finding the Fourth Proportional to 1,316.50, 1,975.94 and 700.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.50 : 1,975.94 = 700.72 : x
2. Step 2: Convert to fraction form
   1,316.50/1,975.94 = 700.72/x
3. Step 3: Cross multiply
   1,316.50x = 1,975.94 × 700.72
4. Step 4: Simplify right side
   1,316.50x = 1,384,584.90
5. Step 5: Solve for x
   x = 1,384,584.90/1,316.50
6. Step 6: Final answer
   x = 1,051.72