Finding the Fourth Proportional to 858,792.83, 1,185,111.56 and 476,809.79

Step by Step Solution

1. Step 1: Write the proportion equation
   858,792.83 : 1,185,111.56 = 476,809.79 : x
2. Step 2: Convert to fraction form
   858,792.83/1,185,111.56 = 476,809.79/x
3. Step 3: Cross multiply
   858,792.83x = 1,185,111.56 × 476,809.79
4. Step 4: Simplify right side
   858,792.83x = 565,072,791,666.12
5. Step 5: Solve for x
   x = 565,072,791,666.12/858,792.83
6. Step 6: Final answer
   x = 657,984.99