Finding the Fourth Proportional to 1,213,119.83, 1,816,085.49 and 898,986.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,119.83 : 1,816,085.49 = 898,986.71 : x
2. Step 2: Convert to fraction form
   1,213,119.83/1,816,085.49 = 898,986.71/x
3. Step 3: Cross multiply
   1,213,119.83x = 1,816,085.49 × 898,986.71
4. Step 4: Simplify right side
   1,213,119.83x = 1,632,636,710,653.41
5. Step 5: Solve for x
   x = 1,632,636,710,653.41/1,213,119.83
6. Step 6: Final answer
   x = 1,345,816.53