Finding the Fourth Proportional to 3,090,728.72, 4,636,020.56 and 816,411.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,090,728.72 : 4,636,020.56 = 816,411.84 : x
2. Step 2: Convert to fraction form
   3,090,728.72/4,636,020.56 = 816,411.84/x
3. Step 3: Cross multiply
   3,090,728.72x = 4,636,020.56 × 816,411.84
4. Step 4: Simplify right side
   3,090,728.72x = 3,784,902,071,585.37
5. Step 5: Solve for x
   x = 3,784,902,071,585.37/3,090,728.72
6. Step 6: Final answer
   x = 1,224,598.60