Finding the Fourth Proportional to 1,821,123.14, 2,513,084.06 and 1,005,309.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821,123.14 : 2,513,084.06 = 1,005,309.30 : x
2. Step 2: Convert to fraction form
   1,821,123.14/2,513,084.06 = 1,005,309.30/x
3. Step 3: Cross multiply
   1,821,123.14x = 2,513,084.06 × 1,005,309.30
4. Step 4: Simplify right side
   1,821,123.14x = 2,526,426,777,199.76
5. Step 5: Solve for x
   x = 2,526,426,777,199.76/1,821,123.14
6. Step 6: Final answer
   x = 1,387,290.47