Finding the Fourth Proportional to 766,245.89, 1,056,314.61 and 536,090.10

Step by Step Solution

1. Step 1: Write the proportion equation
   766,245.89 : 1,056,314.61 = 536,090.10 : x
2. Step 2: Convert to fraction form
   766,245.89/1,056,314.61 = 536,090.10/x
3. Step 3: Cross multiply
   766,245.89x = 1,056,314.61 × 536,090.10
4. Step 4: Simplify right side
   766,245.89x = 566,279,804,906.36
5. Step 5: Solve for x
   x = 566,279,804,906.36/766,245.89
6. Step 6: Final answer
   x = 739,031.45