Finding the Fourth Proportional to 909,058.51, 1,254,508.83 and 501,174.71

Step by Step Solution

1. Step 1: Write the proportion equation
   909,058.51 : 1,254,508.83 = 501,174.71 : x
2. Step 2: Convert to fraction form
   909,058.51/1,254,508.83 = 501,174.71/x
3. Step 3: Cross multiply
   909,058.51x = 1,254,508.83 × 501,174.71
4. Step 4: Simplify right side
   909,058.51x = 628,728,097,499.55
5. Step 5: Solve for x
   x = 628,728,097,499.55/909,058.51
6. Step 6: Final answer
   x = 691,625.56