Finding the Fourth Proportional to 1,051.83, 1,577.34 and 503.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.83 : 1,577.34 = 503.64 : x
2. Step 2: Convert to fraction form
   1,051.83/1,577.34 = 503.64/x
3. Step 3: Cross multiply
   1,051.83x = 1,577.34 × 503.64
4. Step 4: Simplify right side
   1,051.83x = 794,411.52
5. Step 5: Solve for x
   x = 794,411.52/1,051.83
6. Step 6: Final answer
   x = 755.27