Finding the Fourth Proportional to 1,390,705.30, 2,082,947.55 and 1,359,601.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,390,705.30 : 2,082,947.55 = 1,359,601.30 : x
2. Step 2: Convert to fraction form
   1,390,705.30/2,082,947.55 = 1,359,601.30/x
3. Step 3: Cross multiply
   1,390,705.30x = 2,082,947.55 × 1,359,601.30
4. Step 4: Simplify right side
   1,390,705.30x = 2,831,978,196,811.82
5. Step 5: Solve for x
   x = 2,831,978,196,811.82/1,390,705.30
6. Step 6: Final answer
   x = 2,036,361.12