Finding the Fourth Proportional to 905,505, 1,249,601.76 and 503,097

Step by Step Solution

1. Step 1: Write the proportion equation
   905,505 : 1,249,601.76 = 503,097 : x
2. Step 2: Convert to fraction form
   905,505/1,249,601.76 = 503,097/x
3. Step 3: Cross multiply
   905,505x = 1,249,601.76 × 503,097
4. Step 4: Simplify right side
   905,505x = 628,670,896,650.72
5. Step 5: Solve for x
   x = 628,670,896,650.72/905,505
6. Step 6: Final answer
   x = 694,276.56