Finding the Fourth Proportional to 1,109.45, 1,530.06 and 716.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.45 : 1,530.06 = 716.06 : x
2. Step 2: Convert to fraction form
   1,109.45/1,530.06 = 716.06/x
3. Step 3: Cross multiply
   1,109.45x = 1,530.06 × 716.06
4. Step 4: Simplify right side
   1,109.45x = 1,095,615.90
5. Step 5: Solve for x
   x = 1,095,615.90/1,109.45
6. Step 6: Final answer
   x = 987.53