Finding the Fourth Proportional to 1,173,446.72, 1,760,152.61 and 320,516.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173,446.72 : 1,760,152.61 = 320,516.94 : x
2. Step 2: Convert to fraction form
   1,173,446.72/1,760,152.61 = 320,516.94/x
3. Step 3: Cross multiply
   1,173,446.72x = 1,760,152.61 × 320,516.94
4. Step 4: Simplify right side
   1,173,446.72x = 564,158,726,887.63
5. Step 5: Solve for x
   x = 564,158,726,887.63/1,173,446.72
6. Step 6: Final answer
   x = 480,770.64