Finding the Fourth Proportional to 1,477.57, 2,216.58 and 503.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.57 : 2,216.58 = 503.59 : x
2. Step 2: Convert to fraction form
   1,477.57/2,216.58 = 503.59/x
3. Step 3: Cross multiply
   1,477.57x = 2,216.58 × 503.59
4. Step 4: Simplify right side
   1,477.57x = 1,116,247.52
5. Step 5: Solve for x
   x = 1,116,247.52/1,477.57
6. Step 6: Final answer
   x = 755.46