Finding the Fourth Proportional to 1,189,123.10, 1,783,460.42 and 336,187.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,123.10 : 1,783,460.42 = 336,187.98 : x
2. Step 2: Convert to fraction form
   1,189,123.10/1,783,460.42 = 336,187.98/x
3. Step 3: Cross multiply
   1,189,123.10x = 1,783,460.42 × 336,187.98
4. Step 4: Simplify right side
   1,189,123.10x = 599,577,956,009.75
5. Step 5: Solve for x
   x = 599,577,956,009.75/1,189,123.10
6. Step 6: Final answer
   x = 504,218.58