Finding the Fourth Proportional to 1,601,141.16, 2,210,535.83 and 990,113.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601,141.16 : 2,210,535.83 = 990,113.18 : x
2. Step 2: Convert to fraction form
   1,601,141.16/2,210,535.83 = 990,113.18/x
3. Step 3: Cross multiply
   1,601,141.16x = 2,210,535.83 × 990,113.18
4. Step 4: Simplify right side
   1,601,141.16x = 2,188,680,644,141.99
5. Step 5: Solve for x
   x = 2,188,680,644,141.99/1,601,141.16
6. Step 6: Final answer
   x = 1,366,950.46