Finding the Fourth Proportional to 1,051.38, 1,574.67 and 503.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.38 : 1,574.67 = 503.96 : x
2. Step 2: Convert to fraction form
   1,051.38/1,574.67 = 503.96/x
3. Step 3: Cross multiply
   1,051.38x = 1,574.67 × 503.96
4. Step 4: Simplify right side
   1,051.38x = 793,564.71
5. Step 5: Solve for x
   x = 793,564.71/1,051.38
6. Step 6: Final answer
   x = 754.78