Finding the Fourth Proportional to 1,152,429.12, 1,590,310.51 and 636,171.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,429.12 : 1,590,310.51 = 636,171.93 : x
2. Step 2: Convert to fraction form
   1,152,429.12/1,590,310.51 = 636,171.93/x
3. Step 3: Cross multiply
   1,152,429.12x = 1,590,310.51 × 636,171.93
4. Step 4: Simplify right side
   1,152,429.12x = 1,011,710,904,855.55
5. Step 5: Solve for x
   x = 1,011,710,904,855.55/1,152,429.12
6. Step 6: Final answer
   x = 877,894.26