Finding the Fourth Proportional to 1,450,429.29, 1,999,978.83 and 991,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450,429.29 : 1,999,978.83 = 991,618.56 : x
2. Step 2: Convert to fraction form
   1,450,429.29/1,999,978.83 = 991,618.56/x
3. Step 3: Cross multiply
   1,450,429.29x = 1,999,978.83 × 991,618.56
4. Step 4: Simplify right side
   1,450,429.29x = 1,983,216,127,435.09
5. Step 5: Solve for x
   x = 1,983,216,127,435.09/1,450,429.29
6. Step 6: Final answer
   x = 1,367,330.45