Finding the Fourth Proportional to 1,111.00, 1,533.53 and 718.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.00 : 1,533.53 = 718.01 : x
2. Step 2: Convert to fraction form
   1,111.00/1,533.53 = 718.01/x
3. Step 3: Cross multiply
   1,111.00x = 1,533.53 × 718.01
4. Step 4: Simplify right side
   1,111.00x = 1,101,086.29
5. Step 5: Solve for x
   x = 1,101,086.29/1,111.00
6. Step 6: Final answer
   x = 991.08