Finding the Fourth Proportional to 1,310.00, 1,807.83 and 720.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310.00 : 1,807.83 = 720.54 : x
2. Step 2: Convert to fraction form
   1,310.00/1,807.83 = 720.54/x
3. Step 3: Cross multiply
   1,310.00x = 1,807.83 × 720.54
4. Step 4: Simplify right side
   1,310.00x = 1,302,613.83
5. Step 5: Solve for x
   x = 1,302,613.83/1,310.00
6. Step 6: Final answer
   x = 994.37