Finding the Fourth Proportional to 1,685,300.52, 2,325,722.94 and 921,354.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685,300.52 : 2,325,722.94 = 921,354.12 : x
2. Step 2: Convert to fraction form
   1,685,300.52/2,325,722.94 = 921,354.12/x
3. Step 3: Cross multiply
   1,685,300.52x = 2,325,722.94 × 921,354.12
4. Step 4: Simplify right side
   1,685,300.52x = 2,142,814,412,747.51
5. Step 5: Solve for x
   x = 2,142,814,412,747.51/1,685,300.52
6. Step 6: Final answer
   x = 1,271,473.18