Finding the Fourth Proportional to 772,464.48, 1,159,016.80 and 417,060.72

Step by Step Solution

1. Step 1: Write the proportion equation
   772,464.48 : 1,159,016.80 = 417,060.72 : x
2. Step 2: Convert to fraction form
   772,464.48/1,159,016.80 = 417,060.72/x
3. Step 3: Cross multiply
   772,464.48x = 1,159,016.80 × 417,060.72
4. Step 4: Simplify right side
   772,464.48x = 483,380,381,100.10
5. Step 5: Solve for x
   x = 483,380,381,100.10/772,464.48
6. Step 6: Final answer
   x = 625,763.89