Finding the Fourth Proportional to 867,443.25, 1,197,071.54 and 485,470.03

Step by Step Solution

1. Step 1: Write the proportion equation
   867,443.25 : 1,197,071.54 = 485,470.03 : x
2. Step 2: Convert to fraction form
   867,443.25/1,197,071.54 = 485,470.03/x
3. Step 3: Cross multiply
   867,443.25x = 1,197,071.54 × 485,470.03
4. Step 4: Simplify right side
   867,443.25x = 581,142,357,082.32
5. Step 5: Solve for x
   x = 581,142,357,082.32/867,443.25
6. Step 6: Final answer
   x = 669,948.56