Finding the Fourth Proportional to 1,665,603.78, 2,298,534.42 and 901,657.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,603.78 : 2,298,534.42 = 901,657.92 : x
2. Step 2: Convert to fraction form
   1,665,603.78/2,298,534.42 = 901,657.92/x
3. Step 3: Cross multiply
   1,665,603.78x = 2,298,534.42 × 901,657.92
4. Step 4: Simplify right side
   1,665,603.78x = 2,072,491,764,185.61
5. Step 5: Solve for x
   x = 2,072,491,764,185.61/1,665,603.78
6. Step 6: Final answer
   x = 1,244,288.58