Finding the Fourth Proportional to 900,761.25, 1,243,066.32 and 492,898.82

Step by Step Solution

1. Step 1: Write the proportion equation
   900,761.25 : 1,243,066.32 = 492,898.82 : x
2. Step 2: Convert to fraction form
   900,761.25/1,243,066.32 = 492,898.82/x
3. Step 3: Cross multiply
   900,761.25x = 1,243,066.32 × 492,898.82
4. Step 4: Simplify right side
   900,761.25x = 612,705,922,309.74
5. Step 5: Solve for x
   x = 612,705,922,309.74/900,761.25
6. Step 6: Final answer
   x = 680,209.01