Finding the Fourth Proportional to 591,978.02, 888,190.72 and 355,485.56

Step by Step Solution

1. Step 1: Write the proportion equation
   591,978.02 : 888,190.72 = 355,485.56 : x
2. Step 2: Convert to fraction form
   591,978.02/888,190.72 = 355,485.56/x
3. Step 3: Cross multiply
   591,978.02x = 888,190.72 × 355,485.56
4. Step 4: Simplify right side
   591,978.02x = 315,738,970,156.34
5. Step 5: Solve for x
   x = 315,738,970,156.34/591,978.02
6. Step 6: Final answer
   x = 533,362.66