Finding the Fourth Proportional to 914,389.59, 1,261,843.31 and 500,923.07

Step by Step Solution

1. Step 1: Write the proportion equation
   914,389.59 : 1,261,843.31 = 500,923.07 : x
2. Step 2: Convert to fraction form
   914,389.59/1,261,843.31 = 500,923.07/x
3. Step 3: Cross multiply
   914,389.59x = 1,261,843.31 × 500,923.07
4. Step 4: Simplify right side
   914,389.59x = 632,086,424,379.17
5. Step 5: Solve for x
   x = 632,086,424,379.17/914,389.59
6. Step 6: Final answer
   x = 691,265.99