Finding the Fourth Proportional to 858,814.78, 1,294,254.05 and 773,532.72

Step by Step Solution

1. Step 1: Write the proportion equation
   858,814.78 : 1,294,254.05 = 773,532.72 : x
2. Step 2: Convert to fraction form
   858,814.78/1,294,254.05 = 773,532.72/x
3. Step 3: Cross multiply
   858,814.78x = 1,294,254.05 × 773,532.72
4. Step 4: Simplify right side
   858,814.78x = 1,001,147,855,667.52
5. Step 5: Solve for x
   x = 1,001,147,855,667.52/858,814.78
6. Step 6: Final answer
   x = 1,165,731.98