Finding the Fourth Proportional to 1,389,680.30, 2,081,410.05 and 1,140,848.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,680.30 : 2,081,410.05 = 1,140,848.30 : x
2. Step 2: Convert to fraction form
   1,389,680.30/2,081,410.05 = 1,140,848.30/x
3. Step 3: Cross multiply
   1,389,680.30x = 2,081,410.05 × 1,140,848.30
4. Step 4: Simplify right side
   1,389,680.30x = 2,374,573,117,145.42
5. Step 5: Solve for x
   x = 2,374,573,117,145.42/1,389,680.30
6. Step 6: Final answer
   x = 1,708,718.99