Finding the Fourth Proportional to 705,419.42, 973,485.83 and 383,135.81

Step by Step Solution

1. Step 1: Write the proportion equation
   705,419.42 : 973,485.83 = 383,135.81 : x
2. Step 2: Convert to fraction form
   705,419.42/973,485.83 = 383,135.81/x
3. Step 3: Cross multiply
   705,419.42x = 973,485.83 × 383,135.81
4. Step 4: Simplify right side
   705,419.42x = 372,977,280,084.89
5. Step 5: Solve for x
   x = 372,977,280,084.89/705,419.42
6. Step 6: Final answer
   x = 528,731.23