Finding the Fourth Proportional to 1,665,636.93, 2,298,579.74 and 901,690.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,636.93 : 2,298,579.74 = 901,690.50 : x
2. Step 2: Convert to fraction form
   1,665,636.93/2,298,579.74 = 901,690.50/x
3. Step 3: Cross multiply
   1,665,636.93x = 2,298,579.74 × 901,690.50
4. Step 4: Simplify right side
   1,665,636.93x = 2,072,607,510,542.02
5. Step 5: Solve for x
   x = 2,072,607,510,542.02/1,665,636.93
6. Step 6: Final answer
   x = 1,244,333.31