Finding the Fourth Proportional to 1,526,080.78, 2,289,097.86 and 515,912.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,526,080.78 : 2,289,097.86 = 515,912.34 : x
2. Step 2: Convert to fraction form
   1,526,080.78/2,289,097.86 = 515,912.34/x
3. Step 3: Cross multiply
   1,526,080.78x = 2,289,097.86 × 515,912.34
4. Step 4: Simplify right side
   1,526,080.78x = 1,180,973,833,441.59
5. Step 5: Solve for x
   x = 1,180,973,833,441.59/1,526,080.78
6. Step 6: Final answer
   x = 773,860.63