Finding the Fourth Proportional to 1,685,406.94, 2,325,861.59 and 921,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685,406.94 : 2,325,861.59 = 921,460.50 : x
2. Step 2: Convert to fraction form
   1,685,406.94/2,325,861.59 = 921,460.50/x
3. Step 3: Cross multiply
   1,685,406.94x = 2,325,861.59 × 921,460.50
4. Step 4: Simplify right side
   1,685,406.94x = 2,143,189,579,044.89
5. Step 5: Solve for x
   x = 2,143,189,579,044.89/1,685,406.94
6. Step 6: Final answer
   x = 1,271,615.50