Finding the Fourth Proportional to 601,155.06, 830,155.95 and 386,667.48

Step by Step Solution

1. Step 1: Write the proportion equation
   601,155.06 : 830,155.95 = 386,667.48 : x
2. Step 2: Convert to fraction form
   601,155.06/830,155.95 = 386,667.48/x
3. Step 3: Cross multiply
   601,155.06x = 830,155.95 × 386,667.48
4. Step 4: Simplify right side
   601,155.06x = 320,994,309,193.51
5. Step 5: Solve for x
   x = 320,994,309,193.51/601,155.06
6. Step 6: Final answer
   x = 533,962.58