Finding the Fourth Proportional to 1,152,308.48, 1,590,185.80 and 636,062.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,308.48 : 1,590,185.80 = 636,062.50 : x
2. Step 2: Convert to fraction form
   1,152,308.48/1,590,185.80 = 636,062.50/x
3. Step 3: Cross multiply
   1,152,308.48x = 1,590,185.80 × 636,062.50
4. Step 4: Simplify right side
   1,152,308.48x = 1,011,457,555,412.50
5. Step 5: Solve for x
   x = 1,011,457,555,412.50/1,152,308.48
6. Step 6: Final answer
   x = 877,766.30