Finding the Fourth Proportional to 1,258,505.96, 1,736,656.38 and 742,141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,505.96 : 1,736,656.38 = 742,141.42 : x
2. Step 2: Convert to fraction form
   1,258,505.96/1,736,656.38 = 742,141.42/x
3. Step 3: Cross multiply
   1,258,505.96x = 1,736,656.38 × 742,141.42
4. Step 4: Simplify right side
   1,258,505.96x = 1,288,844,631,581.82
5. Step 5: Solve for x
   x = 1,288,844,631,581.82/1,258,505.96
6. Step 6: Final answer
   x = 1,024,106.89