Finding the Fourth Proportional to 1,152,326.06, 1,590,210.24 and 636,080.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,326.06 : 1,590,210.24 = 636,080.24 : x
2. Step 2: Convert to fraction form
   1,152,326.06/1,590,210.24 = 636,080.24/x
3. Step 3: Cross multiply
   1,152,326.06x = 1,590,210.24 × 636,080.24
4. Step 4: Simplify right side
   1,152,326.06x = 1,011,501,312,699.88
5. Step 5: Solve for x
   x = 1,011,501,312,699.88/1,152,326.06
6. Step 6: Final answer
   x = 877,790.89