Finding the Fourth Proportional to 1,136.00, 1,704.72 and 486.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.00 : 1,704.72 = 486.74 : x
2. Step 2: Convert to fraction form
   1,136.00/1,704.72 = 486.74/x
3. Step 3: Cross multiply
   1,136.00x = 1,704.72 × 486.74
4. Step 4: Simplify right side
   1,136.00x = 829,746.89
5. Step 5: Solve for x
   x = 829,746.89/1,136.00
6. Step 6: Final answer
   x = 730.41