Finding the Fourth Proportional to 1,264,722.72, 1,897,087.32 and 516,768.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264,722.72 : 1,897,087.32 = 516,768.72 : x
2. Step 2: Convert to fraction form
   1,264,722.72/1,897,087.32 = 516,768.72/x
3. Step 3: Cross multiply
   1,264,722.72x = 1,897,087.32 × 516,768.72
4. Step 4: Simplify right side
   1,264,722.72x = 980,355,386,084.63
5. Step 5: Solve for x
   x = 980,355,386,084.63/1,264,722.72
6. Step 6: Final answer
   x = 775,154.40