Finding the Fourth Proportional to 1,490,556.96, 2,059,373.52 and 1,039,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490,556.96 : 2,059,373.52 = 1,039,860 : x
2. Step 2: Convert to fraction form
   1,490,556.96/2,059,373.52 = 1,039,860/x
3. Step 3: Cross multiply
   1,490,556.96x = 2,059,373.52 × 1,039,860
4. Step 4: Simplify right side
   1,490,556.96x = 2,141,460,148,507.20
5. Step 5: Solve for x
   x = 2,141,460,148,507.20/1,490,556.96
6. Step 6: Final answer
   x = 1,436,684.55