Finding the Fourth Proportional to 1,113.33, 1,535.59 and 714.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.33 : 1,535.59 = 714.64 : x
2. Step 2: Convert to fraction form
   1,113.33/1,535.59 = 714.64/x
3. Step 3: Cross multiply
   1,113.33x = 1,535.59 × 714.64
4. Step 4: Simplify right side
   1,113.33x = 1,097,394.04
5. Step 5: Solve for x
   x = 1,097,394.04/1,113.33
6. Step 6: Final answer
   x = 985.69