Finding the Fourth Proportional to 1,093.08, 1,507.20 and 719.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.08 : 1,507.20 = 719.94 : x
2. Step 2: Convert to fraction form
   1,093.08/1,507.20 = 719.94/x
3. Step 3: Cross multiply
   1,093.08x = 1,507.20 × 719.94
4. Step 4: Simplify right side
   1,093.08x = 1,085,093.57
5. Step 5: Solve for x
   x = 1,085,093.57/1,093.08
6. Step 6: Final answer
   x = 992.69