Finding the Fourth Proportional to 1,442,039.05, 1,989,412.83 and 830,045.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442,039.05 : 1,989,412.83 = 830,045.37 : x
2. Step 2: Convert to fraction form
   1,442,039.05/1,989,412.83 = 830,045.37/x
3. Step 3: Cross multiply
   1,442,039.05x = 1,989,412.83 × 830,045.37
4. Step 4: Simplify right side
   1,442,039.05x = 1,651,302,913,685.89
5. Step 5: Solve for x
   x = 1,651,302,913,685.89/1,442,039.05
6. Step 6: Final answer
   x = 1,145,116.64