Finding the Fourth Proportional to 1,164.32, 1,607.52 and 722.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.32 : 1,607.52 = 722.87 : x
2. Step 2: Convert to fraction form
   1,164.32/1,607.52 = 722.87/x
3. Step 3: Cross multiply
   1,164.32x = 1,607.52 × 722.87
4. Step 4: Simplify right side
   1,164.32x = 1,162,027.98
5. Step 5: Solve for x
   x = 1,162,027.98/1,164.32
6. Step 6: Final answer
   x = 998.03