Finding the Fourth Proportional to 1,477.56, 2,216.52 and 503.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.56 : 2,216.52 = 503.88 : x
2. Step 2: Convert to fraction form
   1,477.56/2,216.52 = 503.88/x
3. Step 3: Cross multiply
   1,477.56x = 2,216.52 × 503.88
4. Step 4: Simplify right side
   1,477.56x = 1,116,860.10
5. Step 5: Solve for x
   x = 1,116,860.10/1,477.56
6. Step 6: Final answer
   x = 755.88