Finding the Fourth Proportional to 1,665,678.57, 2,298,641.61 and 901,730.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,678.57 : 2,298,641.61 = 901,730.31 : x
2. Step 2: Convert to fraction form
   1,665,678.57/2,298,641.61 = 901,730.31/x
3. Step 3: Cross multiply
   1,665,678.57x = 2,298,641.61 × 901,730.31
4. Step 4: Simplify right side
   1,665,678.57x = 2,072,754,811,564.20
5. Step 5: Solve for x
   x = 2,072,754,811,564.20/1,665,678.57
6. Step 6: Final answer
   x = 1,244,390.63