Finding the Fourth Proportional to 1,624.06, 2,438.52 and 931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.06 : 2,438.52 = 931.52 : x
2. Step 2: Convert to fraction form
   1,624.06/2,438.52 = 931.52/x
3. Step 3: Cross multiply
   1,624.06x = 2,438.52 × 931.52
4. Step 4: Simplify right side
   1,624.06x = 2,271,530.15
5. Step 5: Solve for x
   x = 2,271,530.15/1,624.06
6. Step 6: Final answer
   x = 1,398.67