Finding the Fourth Proportional to 601,131.51, 901,359.50 and 411,805.35

Step by Step Solution

1. Step 1: Write the proportion equation
   601,131.51 : 901,359.50 = 411,805.35 : x
2. Step 2: Convert to fraction form
   601,131.51/901,359.50 = 411,805.35/x
3. Step 3: Cross multiply
   601,131.51x = 901,359.50 × 411,805.35
4. Step 4: Simplify right side
   601,131.51x = 371,184,662,314.30
5. Step 5: Solve for x
   x = 371,184,662,314.30/601,131.51
6. Step 6: Final answer
   x = 617,476.64