Finding the Fourth Proportional to 1,116,788.31, 1,674,546.89 and 762,231.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,788.31 : 1,674,546.89 = 762,231.87 : x
2. Step 2: Convert to fraction form
   1,116,788.31/1,674,546.89 = 762,231.87/x
3. Step 3: Cross multiply
   1,116,788.31x = 1,674,546.89 × 762,231.87
4. Step 4: Simplify right side
   1,116,788.31x = 1,276,393,003,556.22
5. Step 5: Solve for x
   x = 1,276,393,003,556.22/1,116,788.31
6. Step 6: Final answer
   x = 1,142,914.01