Finding the Fourth Proportional to 1,139,575.31, 1,709,365.86 and 465,656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,575.31 : 1,709,365.86 = 465,656.50 : x
2. Step 2: Convert to fraction form
   1,139,575.31/1,709,365.86 = 465,656.50/x
3. Step 3: Cross multiply
   1,139,575.31x = 1,709,365.86 × 465,656.50
4. Step 4: Simplify right side
   1,139,575.31x = 795,977,323,587.09
5. Step 5: Solve for x
   x = 795,977,323,587.09/1,139,575.31
6. Step 6: Final answer
   x = 698,485.93