Finding the Fourth Proportional to 1,093.33, 1,638.69 and 507.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.33 : 1,638.69 = 507.54 : x
2. Step 2: Convert to fraction form
   1,093.33/1,638.69 = 507.54/x
3. Step 3: Cross multiply
   1,093.33x = 1,638.69 × 507.54
4. Step 4: Simplify right side
   1,093.33x = 831,700.72
5. Step 5: Solve for x
   x = 831,700.72/1,093.33
6. Step 6: Final answer
   x = 760.70