Finding the Fourth Proportional to 617,910.30, 925,051.05 and 460,835.10

Step by Step Solution

1. Step 1: Write the proportion equation
   617,910.30 : 925,051.05 = 460,835.10 : x
2. Step 2: Convert to fraction form
   617,910.30/925,051.05 = 460,835.10/x
3. Step 3: Cross multiply
   617,910.30x = 925,051.05 × 460,835.10
4. Step 4: Simplify right side
   617,910.30x = 426,295,993,131.86
5. Step 5: Solve for x
   x = 426,295,993,131.86/617,910.30
6. Step 6: Final answer
   x = 689,899.48