Finding the Fourth Proportional to 1,093.89, 1,509.39 and 651.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.89 : 1,509.39 = 651.81 : x
2. Step 2: Convert to fraction form
   1,093.89/1,509.39 = 651.81/x
3. Step 3: Cross multiply
   1,093.89x = 1,509.39 × 651.81
4. Step 4: Simplify right side
   1,093.89x = 983,835.50
5. Step 5: Solve for x
   x = 983,835.50/1,093.89
6. Step 6: Final answer
   x = 899.39