Finding the Fourth Proportional to 1,380,185.83, 1,906,250.59 and 920,501.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,185.83 : 1,906,250.59 = 920,501.65 : x
2. Step 2: Convert to fraction form
   1,380,185.83/1,906,250.59 = 920,501.65/x
3. Step 3: Cross multiply
   1,380,185.83x = 1,906,250.59 × 920,501.65
4. Step 4: Simplify right side
   1,380,185.83x = 1,754,706,816,941.91
5. Step 5: Solve for x
   x = 1,754,706,816,941.91/1,380,185.83
6. Step 6: Final answer
   x = 1,271,355.48