Finding the Fourth Proportional to 1,111.00, 1,533.17 and 613.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.00 : 1,533.17 = 613.64 : x
2. Step 2: Convert to fraction form
   1,111.00/1,533.17 = 613.64/x
3. Step 3: Cross multiply
   1,111.00x = 1,533.17 × 613.64
4. Step 4: Simplify right side
   1,111.00x = 940,819.81
5. Step 5: Solve for x
   x = 940,819.81/1,111.00
6. Step 6: Final answer
   x = 846.82