Finding the Fourth Proportional to 1,821,401.60, 2,513,522.46 and 1,005,656.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821,401.60 : 2,513,522.46 = 1,005,656.12 : x
2. Step 2: Convert to fraction form
   1,821,401.60/2,513,522.46 = 1,005,656.12/x
3. Step 3: Cross multiply
   1,821,401.60x = 2,513,522.46 × 1,005,656.12
4. Step 4: Simplify right side
   1,821,401.60x = 2,527,739,244,656.46
5. Step 5: Solve for x
   x = 2,527,739,244,656.46/1,821,401.60
6. Step 6: Final answer
   x = 1,387,798.96