Finding the Fourth Proportional to 768,924.96, 1,061,118.72 and 429,406.08

Step by Step Solution

1. Step 1: Write the proportion equation
   768,924.96 : 1,061,118.72 = 429,406.08 : x
2. Step 2: Convert to fraction form
   768,924.96/1,061,118.72 = 429,406.08/x
3. Step 3: Cross multiply
   768,924.96x = 1,061,118.72 × 429,406.08
4. Step 4: Simplify right side
   768,924.96x = 455,650,829,969.82
5. Step 5: Solve for x
   x = 455,650,829,969.82/768,924.96
6. Step 6: Final answer
   x = 592,581.66