Finding the Fourth Proportional to 1,653.34, 2,479.73 and 613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,653.34 : 2,479.73 = 613.10 : x
2. Step 2: Convert to fraction form
   1,653.34/2,479.73 = 613.10/x
3. Step 3: Cross multiply
   1,653.34x = 2,479.73 × 613.10
4. Step 4: Simplify right side
   1,653.34x = 1,520,311.60
5. Step 5: Solve for x
   x = 1,520,311.60/1,653.34
6. Step 6: Final answer
   x = 919.54