Finding the Fourth Proportional to 1,200,944.43, 1,805,737.71 and 1,107,320.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,944.43 : 1,805,737.71 = 1,107,320.01 : x
2. Step 2: Convert to fraction form
   1,200,944.43/1,805,737.71 = 1,107,320.01/x
3. Step 3: Cross multiply
   1,200,944.43x = 1,805,737.71 × 1,107,320.01
4. Step 4: Simplify right side
   1,200,944.43x = 1,999,529,499,094.58
5. Step 5: Solve for x
   x = 1,999,529,499,094.58/1,200,944.43
6. Step 6: Final answer
   x = 1,664,964.21