Finding the Fourth Proportional to 1,323,354.46, 1,985,228.52 and 613,454.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323,354.46 : 1,985,228.52 = 613,454.26 : x
2. Step 2: Convert to fraction form
   1,323,354.46/1,985,228.52 = 613,454.26/x
3. Step 3: Cross multiply
   1,323,354.46x = 1,985,228.52 × 613,454.26
4. Step 4: Simplify right side
   1,323,354.46x = 1,217,846,892,667.50
5. Step 5: Solve for x
   x = 1,217,846,892,667.50/1,323,354.46
6. Step 6: Final answer
   x = 920,272.63