Finding the Fourth Proportional to 1,009.57, 1,513.43 and 701.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.57 : 1,513.43 = 701.57 : x
2. Step 2: Convert to fraction form
   1,009.57/1,513.43 = 701.57/x
3. Step 3: Cross multiply
   1,009.57x = 1,513.43 × 701.57
4. Step 4: Simplify right side
   1,009.57x = 1,061,777.09
5. Step 5: Solve for x
   x = 1,061,777.09/1,009.57
6. Step 6: Final answer
   x = 1,051.71