Finding the Fourth Proportional to 1,218,061.18, 1,680,881.52 and 674,198.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,061.18 : 1,680,881.52 = 674,198.02 : x
2. Step 2: Convert to fraction form
   1,218,061.18/1,680,881.52 = 674,198.02/x
3. Step 3: Cross multiply
   1,218,061.18x = 1,680,881.52 × 674,198.02
4. Step 4: Simplify right side
   1,218,061.18x = 1,133,246,992,638.59
5. Step 5: Solve for x
   x = 1,133,246,992,638.59/1,218,061.18
6. Step 6: Final answer
   x = 930,369.52