Finding the Fourth Proportional to 1,588.47, 2,382.69 and 613.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.47 : 2,382.69 = 613.89 : x
2. Step 2: Convert to fraction form
   1,588.47/2,382.69 = 613.89/x
3. Step 3: Cross multiply
   1,588.47x = 2,382.69 × 613.89
4. Step 4: Simplify right side
   1,588.47x = 1,462,709.56
5. Step 5: Solve for x
   x = 1,462,709.56/1,588.47
6. Step 6: Final answer
   x = 920.83