Finding the Fourth Proportional to 766,618.56, 1,148,656.61 and 466,190.37

Step by Step Solution

1. Step 1: Write the proportion equation
   766,618.56 : 1,148,656.61 = 466,190.37 : x
2. Step 2: Convert to fraction form
   766,618.56/1,148,656.61 = 466,190.37/x
3. Step 3: Cross multiply
   766,618.56x = 1,148,656.61 × 466,190.37
4. Step 4: Simplify right side
   766,618.56x = 535,492,647,687.89
5. Step 5: Solve for x
   x = 535,492,647,687.89/766,618.56
6. Step 6: Final answer
   x = 698,512.50