Finding the Fourth Proportional to 1,857,773.88, 2,786,636.01 and 509,936.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857,773.88 : 2,786,636.01 = 509,936.72 : x
2. Step 2: Convert to fraction form
   1,857,773.88/2,786,636.01 = 509,936.72/x
3. Step 3: Cross multiply
   1,857,773.88x = 2,786,636.01 × 509,936.72
4. Step 4: Simplify right side
   1,857,773.88x = 1,421,008,014,752.37
5. Step 5: Solve for x
   x = 1,421,008,014,752.37/1,857,773.88
6. Step 6: Final answer
   x = 764,898.26